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HotCRP Conference Management Software News

2.100 15.Jun.2016
Sort reviews & comments by post time, rather than putting all the reviews first and all the comments later.

Support comments with >32768 bytes.

Search: New keywords including ‘pref:USER’, ‘edit:tags’.

Support annotated tag orders.

Graphs: ‘boxplot’ graphs, better tooltips, more colors.

Styles: “Labels”! A tag can appear after the paper title in a wee lozenge. I like this, but I’m not sure anyone else cares.

Styles: If you tag a paper with multiple colors, you will get a **RAINBOW**, because we dynamically create the fill pattern.

Completion: Nicer UI.

Formulas: New expressions including ‘argmin’, ‘argmax’, ‘reviewer’, ‘reviewer:#pc’, ‘quantile’, ‘median’, ‘sqrt’, ‘exp’, ‘pow’. Fix comparisons of letter scores.

Autoassigner: Provide checkboxes so only a subset of the assignment can be applied.

Bulk assignment: Add “Unsubmit review” assignment type; support changing review rounds.

Settings: Add a track permission for “can see reviewer names.”

User pages: Tag actions.

Internal: Performance improvements. Reduce query load; render paper lists more in Javascript.

Internal: Major refactoring of the settings system, search actions, format checking, and paper options. Support external plugins for all these.

Many bug fixes. Work with newer MySQLs; fix review delegation; improve tracker; bug fixes in min-cost max-flow assignment; fix an information-exposure bug where enterprising PC members could discover tags for conflicted papers.

Thanks for feature requests and bug reports to many users including Emery Berger, Michele Nelson, Shriram Krishnamurthi, Chris Kanich, Don Porter, Oleg Vaskevich, Eijiro Sumii, Marcos Aguilera.

2.99 21.Nov.2015
Support real-valued tag indexes and tag indexes for PC members.

Fix some bugs in 2.98.

2.98 19.Nov.2015
MySQL improvements: Use InnoDB; set the connection charset to binary, which is required on newer MySQL instances; support emoji in reviews.

Fix problem when there are more than 26 reviews (Emery Berger report).

Fix problem with Apache+mod_rewrite installations.

Use more HTML5 attributes, improve Firefox rendering speed, more bug fixes and improvements.

2.97 28.Sep.2015
Add ‘re:words’ search term and formula term.

Fix bug where the response word counting feature could break some browsers (a regular expression’s backtracking went exponential).

2.96 24.Sep.2015
New improved look.

Support per-review-round review fields: a review in round R2 can look different from one in round R1, for instance. Note that each reviewer can enter at most one review per paper (not one review per round).

Add ‘HIGHLIGHT’ search keyword.

Improved autocompletion for searches.

Add glyphs for when you’re a lead and/or shepherd to paper lists.

The settings UI support configuring whether PDF submissions are required.

Add an autoassigner that chooses a sensible discussion order, reducing conflict churn.

Formulas support dec:, re:REVIEWERNAME, re:REVIEWERTAG.

Score fields on review forms can be configured to allow "No entry".

Fixes to password reset, autoassigner, many others.

Thanks to all contributors and users, especially John Wilkes and Jeff Mogul. Emery Berger also suggested a feature or two.

2.95 19.Jun.2015
Graphs!!!!!

Globally-optimal autoassignment through min-cost max-flow!!!!!

Paper administrators can access the autoassigner and bulk assigner for those papers they administer.

Keyboard shortcuts on paper pages: c, enter new comment; s+d, set decision; s+l, set discussion lead; s+s, set shepherd; s+t, set tags.

Add approval voting.

Review scores can have different color scales.

Reviews can be made visible only for papers with a certain tag.

Add ‘pre:’ searches for partially-complete reviews.

Add searches for attachment options: number of attachments, attachment filename.

Hundreds of bug fixes and minor improvements, and some performance work.

2.94 15.Mar.2015
Add buzzer, a discussion status page based on the tracker. Many tracker stability improvements.

Support multiple response rounds.

Support massive bulk assignments.

Formulas can refer to both preferences and reviews, e.g., ‘any(pref>0 && ovemer=2)’.

Hundreds of bug fixes and minor improvements.

Thanks to Nickolai Zeldovich, Stephen Murdoch, Umut Acar, Jan Vitek, John Tang Boyland, Sandhya Dwarkadas, Steve Blackburn, Erez Zadok, Dan Tsafrir, Peter Sewell, Gail Murphy, George Candea, and others.

2.93 2.Oct.2014
Improve autoassigner to spread out user unhappiness.

Improve appearance and behavior. For example, edit comments in place via Javascript.

Improve search. Add many new search keywords. Allow ‘show:FORMULA’ to show a new formula; for example ‘show:max(ovemer)’.

Per-round review deadlines.

Reviewer preference expertise is available for formulas.

Support clickthrough reviewing terms.

Fix bugs.

Support Comet tracker: https://github.com/kohler/hotcrp-comet

Add some batch scripts. E.g., ‘php batch/s3transfer.php’ uploads documents to S3.

Render score charts in Javascript via canvas.

Download JSON information about papers, then upload it via ‘php batch/savepapers.php’.

Support NGINX/php-fpm.

Allow sharing a session variable among conferences on the same server.

Thanks to Aaron Gember, Todd Millstein, Dan Wallach, Vivek Pai, Hyojin Sung, Rakesh Komuravelli, David Walker, Shriram Krishnamurthi, Nickolai Zeldovich, Michele Nelson, ‘mutax’, Fred Douglis, and others.

2.92 13.May.2014
Bug fixes for bugs reported by Shriram Krishnamurthi, Aditya Akella, Yoshi Kohno, Garth Gibson.

2.91 1.May.2014
Bug fixes to profile editing and submission options problems reported by Lars Eggert and Kevin Fu.

2.90 25.Apr.2014
Major refactoring release.

Add meeting tracker. Chairs can click a button which will broadcast their position in a discussion list to all PC members.

Support encrypted passwords, and encrypt passwords by default.

Improve bulk assignment: allow more kinds of assignment upload, including tags, and give users a chance to confirm uploaded assignments.

Add ‘has:final’, ‘has:paper’, ‘has:comment’, ‘has:response’, and ‘has:OPTION’ search options.

Support multiple ‘sort:’ keywords, such as ‘sort:overall-merit sort:title’; and support complex sorters, such as ‘sort:"overall merit by variance"’.

Add support for a "timestamp" column, hidden by default. So you can search for ‘sort:timestamp’ and ‘show:timestamp’.

Add a test suite.

Support running under nginx.

Many other bug fixes and improvements, including a SQL injection fix in offline review uploads and MySQL 5.6 compatibility.

Thanks to Nickolai Zeldovich, Todd Millstein, Peter Sewell, Garth Gibson, Colin Scott, Chris Kanich, Adrian Sampson, Fred Douglis, Kevin Fu, Soheil Hassas Yeganeh, Robby Findler, and Johannes Dahse.

2.61 14.Aug.2013
Correct some XSS errors and one SQL injection error reported by Johannes Dahse using a static checking tool of his design. The XSS errors are not serious. The SQL injection is potentially serious, but it is only exploitable on conferences that include a "radio buttons" paper option. You can avoid the problem without upgrading by switching the paper option to "selector".

Other small bug fixes, including fixes to the packaging of 2.60. Thanks to Anil Madhavapeddy and Peter Sewell.

2.60 19.Jul.2013
Major new feature: Paper managers. Administrators can assign PC members to "manage" individual papers. These PC members gain admin rights over those papers, and can, for example, assign reviewers as usual. This required extensive rearchitecting of system internals to (hopefully) avoid information leaks.

Frequently requested new feature: Attachment-style paper options, into which users can upload arbitrarily many files of arbitrary type.

Add Search > Download > PC review preferences and Search > Download \> ACM CMS report.

Add multiline text entry options.

Tags and search keywords are not case sensitive.

Many bug fixes, including to score searches like ‘ovemer:AC’.

Thanks to Peter Sewell, Sarita Adve, Josh Simons, John Heidemann, and Jeff Mogul.

2.59 14.Jun.2013
Bug fix: "Monitor external reviews" works. Reported by Peter Sewell.

Information leak fixes: During response periods, don’t notify authors of changes in PC-only fields. Don’t allow searches on review rounds for conflicted papers. Don’t show accept status via "Accepted papers" searches. Reported by Nickolai Zeldovich and Jeff Mogul.

2.58 23.Mar.2013
More information leak plugging: explicit search for review fields that should be hidden from authors, and review rounds. Reported by John Heidemann.

2.57 16.Mar.2013
Bug fix: The search page’s score graphs exposed score values for authored papers during the rebuttal phase. This is normally OK, but it’s not OK if authors aren’t supposed to see the scores. Reported by Jitu Padhye and Srini Seshan.

Bug fix: ‘au:’ searches work for non-chairs. Broken since 2011!

Add a random-walk-based paper ranking method (John Douceur).

2.56 29.Jan.2013
This is a major refactoring release. Internals, particularly for paper list display, are cleaner and more extensible. But bugs are likely.

New drag-and-drop mode for setting tag orders. Search for ‘editsort:#TAGNAME’. This mode is suggested for paper ranks.

New popup help for setting tags and searching for tags.

Search for ‘show:#TAGNAME’ to show a particular tag. Search for ‘edit:#TAGNAME’ to edit tag values. Search for ‘edit:tag:TAGNAME’ to edit a tag with checkboxes.

Search for ‘show:SCORE’ or ‘show:FORMULANAME’ to add a score or formula to the display, or ‘hide:’ to remove it from the display. You may also ‘show:’ or ‘hide:’ title, status, statusfull, revtype, revstat, revsubmitted, revdelegation, assrev, topicscore, topics, revpref, allrevpref, desirability, reviewers, authors, collab, tags, abstract, lead, shepherd, pcconf (depending on your access rights). These should be documented. You may also search for ‘edit:revpref’ to edit review preferences.

Improvements to paper search for accented names. E.g., searching for "Crap" will match "Cráp".

Improvements to database creation.

Add ‘Code/runsql.sh’ script to run MySQL on the paper database.

Several bug fixes, including that search respects the "PC can view decisions" setting.

Thanks to Jeff Mogul and John Douceur.

2.55 31.Dec.2012
Minor bugfix release.

2.54 30.Dec.2012
Fix bug in 2.53 where long papers could not be uploaded. Kamin Whitehouse report.

Responses: Show a words-left count.

Some other bug fixes.

2.53 26.Dec.2012
Support sending mail to PC members about their new review assignments.

Add HTTP authentication option: ‘$Opt["httpAuthLogin"]’.

Bug fixes to bulk account creation, among others.

Thanks to Adam Allred, Lujo Bauer, John Douceur, Gernot Heiser, Petros Maniatis, Jeff Mogul, Antoine Picard, and Anthony Riley.

2.52 23.Jul.2012
Allow chairs to change all PC conflicts on papers’ Edit screens.

Other bug fixes and improvements.

2.51 22.Jun.2012
Fix bug with setting tags on per-paper pages (caused by cross-site request forgery protection).

Other fixes and improvements.

2.50 10.May.2012
Fix database error on response submissions (a problem since v2.48). Problem reported by Robby Findler.

Cross-site request forgery protection.

Other fixes and improvements.

Thanks to Dan Tsafrir, Wilson Hsieh, Giuliano Casale, and Geoff Voelker.

2.49 29.Mar.2012
Add update notification. Chairs’ browsers contact an updates server, hotcrp.lcdf.org/updates, to check whether the HotCRP installation should be updated. If you don’t want chairs’ browsers to contact hotcrp.lcdf.org with version information, set ‘$Opt["updatesSite"] = false’.

2.48 28.Mar.2012
Correct major information exposure with author-view capabilities. Author-view capability URLs, when entered by users not otherwise logged in, gave access to comments meant only for PC members and reviewers. Comment identities were not exposed. Apologies.

Support video submissions.

Columnar search display. Try ‘1-10 THEN 2-20 VIEW:compactcolumns’.

Other bug fixes and improvements.

Thanks to Muli Ben-Yahuda, Dan Tsafrir, Erez Zadok, Robby Findler, Wilson Hsieh, Gernot Heiser, Jeff Mogul, George Candea, John Regehr, of course Jane-Ellen Long, and others.

2.47 14.Dec.2011
Add author-view capabilities. These parameters, when appended to any HotCRP URL, grant the client the right to view a paper like an author.

Capabilities will let us start removing passwords from emails, something long desired. They are cryptographically hashed from information including a per-conference secret, so a paper’s capabilities are unguessable without database access.

Support PowerPoint uploads.

Add a new PC review assignment: "optional" PC reviews (PC members are asked to accept or decline).

Comments are numbered as @1, @2, @3, @4 (and @A1, @A2, ...). This will hopefully facilitate cross-references among comments.

UI improvements and bug fixes for review preferences, bulk account creation, mail tool, the "PC chairs must approve external reviewers" setting, Chrome compatibility, offline reviewing, mod_rewrite configuration bugs, and paper URLs. And ‘#tagname’ is a valid search string for ‘tag:tagname’.

Information leak fixes: accept author lists, PC chair approvals for external reviewers.

Thanks to Lars Eggert, Michael Hicks, John Wilkes, Jane-Ellen Long, Jeff Mogul, Clay Shepard, Gareth Gale, and Amit Sahai.

2.46 5.Aug.2011
Support multiple final-version uploads.

Usability improvements: allow uploading conflict assignments; new tag colors: "bold", "italic", "big", "small"; more consistent reviewer searches, e.g. ‘lead:me’; etc.

Other bug fixes.

2.45 24.Apr.2011
New, improved visual appearance for paper pages.

Keyboard shortcuts on paper pages: press "j" to go to the previous paper in the list, "k" to go to the next.

Search improvements: Add review preference search, reviewer conflict search, saved searches, and "tag reports" display options.

Usability improvements in manual conflict detection and assignment.

Speed improvements: Allow a user to open new pages while downloading a large file.

New blindness settings: authors can be blind until reviewer submits review; and comments can be made visible only to PC chairs.

Log mail bodies sent by the mail tool.

Several bug fixes (including to IRV assignment) and usability fixes.

Thanks especially to Jeff Mogul and John Wilkes, and to Paarijaat Aditya, Stefan Savage, Jane-Ellen Long, Philippe Bonet, Christoph Mayer, Manolis Stamatogiannakis, and Michael Hicks.

2.44 8.Feb.2011
Correct recent bugs: improve Ajax return values (which lacked "b" characters due to a quoting mishap); do not ask authors for responses when responses are not open; don’t include HTML in textual email.

Other small improvements: add conflict types to PC conflict reports; CSV reports; fix searches for terms like ‘re:heavy=0’; fix negated search terms; add paper option display type.

Thanks especially to Jeff Mogul and John Byers.

2.43 3.Jan.2011
Correct 2.41 bug that could cause SQL errors on the home page when users had many comments to view. Double ouch! Apologies to Tony Del Porto and Usenix.

2.42 2.Jan.2011
Correct 2.41 bug that broke ‘ovemer:3’ searches (ouch).

Add searches like ‘ovemer:pc>3’, which check scores given by subsets of reviewers.

Style nits (paragraph breaks in abstracts, reviewer icon alignment).

2.41 13.Dec.2010
The "Recent activity" on the home page includes information about submitted reviews as well as submitted comments (frequent request, including from Ratul Mahajan).

Manual assignment nasty bug fix: As of 2.40 the manual assignment page would always show the CHAIR’S preferences & conflicts. Now it shows the selected PC member’s preferences & conflicts.

Deadlines: Replace the previous "the server’s time is XXX" display with a new countdown to the submission deadline. Use Javascript and Ajax loads to keep the countdown up to date.

Search improvements

* Add support for ‘cmt:REVIEWERNAME’.

* Add support for ‘re:me’, ‘re:pc’, and ‘re:-PCTAG’.

* Improve ‘conflict:’ support.

* ‘tag:FOO*BAR’ searches for any tag that matches FOO*BAR, using glob matching.

* Allow comma- as well as space-separated paper lists.

* Always show all display options ("More>>" distracted).

Assignment bug fixes and improvements: autoassign lead/shepherd no longer resets existing assignments; autoassign lead/shepherd gains more options.

Display improvements: better HTML formatting on mail page (IE6 was broken); paper list authors are grouped by affiliation in search lists; remove the low-value "Welcome, YOUR NAME!" home page section; Web forms show review field visibility more clearly; better name abbreviation.

Usability improvements: don’t lose comments if user’s session expires. Wording improvements and additional dialog boxes avoid confusing users about paper "versions" and prevent discourage turning a paper from ready to not-ready-for-review. Warn users who have turned off Javascript. Show the chair a warning if PC members have -100 preferences that don’t correspond to conflicts.

Security improvements: reduce scope for IE XSS attacks, don’t leak contact emails to unauthorized users, don’t leak shepherds & leads to chairs who are conflicted.

Thanks to Jeff Mogul, Casey Henderson, Juan Caballero, Adam Barth, Jane-Ellen Long, Andrew Hume, Mooly Sagiv, David Schultz, David Evans, Petros Efstathopoulos, Stephanie Weinrich, David A. Padua, and David Andersen.

2.40 30.Jul.2010
Search expression improvements: Allow parenthesized expressions, ‘AND’ keywords, and ‘THEN’ searches. ‘THEN’ is the lowest precedence operator. It is like ‘OR’, but can only appear at the top level, and also affects the sort order -- in a search like ‘a THEN b’, the papers matching ‘a’ will appear in the list before the papers matching ‘b’.

New features: PC member tags appear in user search; PC member tags work in ‘conflict:’ searches; allow searches like ‘conflict>2’; ‘conflict:me’ searches for your own conflicts; allow searches like ‘5-1’.

Bug fixes: Support Postfix mailers on UNIX; fix formulas (previously, adding a formula appeared to do nothing); paper list sort order does not expose accept/reject status to PC members.

PC conflict visibility: PC members can see a paper’s conflicts if they can see its authors.

Thanks to Geoff Voelker, Stephanie Weirich, Umesh Shankar, Jane-Ellen Long, and Dana Randall.

2.39 20.May.2010
PC member tags. Each PC member can be associated with a list of tags, which use the same format as paper tags. This list is only set by administrators. PC tags can be associated with colors, searched, and act selectively as mail destinations. This feature may be useful for (for example) heavy vs. light PCs.

Add "PC can see all reviews" > "Yes, once they’ve completed all their assigned reviews" option.

Support score range searches like ‘ovemer:BC’ and ‘ovemer:1-3’.

Various bug fixes and tweaks to avoid misleading hurried users.

Thanks especially to Jeff Mogul and Ian Goldberg.

2.38 27.Jan.2010
Add "Recent comments" section to the home page for PC members. This lists recent viewable comments, newest comments first.

Detect and compensate for invalid UTF-8 in uploaded review files (assume invalid UTF-8 means Windows 1252/ISO-8859-1).

Many bug fixes, including SQL errors when saving all-zero preferences, searches for letter scores (i.e. ‘revexp:X’), manual conflict assignments, sending email to contact authors when a chair withdraws a paper, and actually sending email to users "watching" a paper’s comments.

PC members can elect to receive email on ALL papers’ comment updates (except for conflicts).

Thanks especially to Alex Aiken, and to David Evans, John Ousterhout, Tony Del Porto, Jane-Ellen Long, and Casey Henderson.

2.37 19.Dec.2009
Bug-fix release.

2.36 17.Dec.2009
Formulas

* PC members and administrators can define formula columns for search results, which might show, for example, the sum of a paper’s overall merit scores, or average overall merit weighted by reviewer expertise. See help for more details.

Paper ranking improvements

* Improve Schulze-method rank calculation by weighting preferences differently. Specifically, if few voters specified any preference involving paper A, then weight those preferences heavily. This deflates the margins for frequently-reviewed papers and, as a result, preserves preferences for infrequently-reviewed papers. Without a weighting like this, multi-round conferences might see papers eliminated in early rounds unexpectedly rise to the top. Based on observations from SOSP.

* Hugely faster rank calculation.

* Report incremental progress for rank calculation.

* Add options for calculating ranks: select which ranking method you want to use using the UI. Also, you can define a gapless order or calculate a rank using a different source tag.

Rename "Define sequential" to "Define gapless order."

Improve paper search displays by shrinking typically-narrow columns.

Bug fix: Submitting a final copy doesn’t reset PC conflicts.

Support reordering paper options on the submission form.

Allow explicit account creation even when LDAP logins are on.

Other bug fixes, including two minor information leaks.

Thanks to Laurent Réveillère, John Heidemann, Ratul Mahajan, S. Keshav, Gareth Gale, Alex Aiken, Benjamin Pierce, Tom Anderson, Mike Freedman, and John P. John.

2.35 7.Oct.2009
Paper options: Support numeric values, text values, and PDF uploads.

Account display/profile page: Usability improvements, add links between people, support bulk upload of many users at once.

conflict:pc’ search returns all PC conflict papers.

Web review forms default to "ready for others to see."

Chair paper lists: Sorting doesn’t expose conflicted scores by default; an "override conflicts" checkbox shows conflicted scores.

Fix information leak: Final copy upload support doesn’t expose paper acceptance.

New settings: soft deadline for final copy collection; "PC members can edit external reviews they requested"; format checker understands fractional point sizes; "Visible if authors are visible" setting for paper options.

Bug fixes and improvements to createdb.sh, quicklinks, default conference settings, decision type settings, mailer.

Thanks to John Heidemann, John P. John, Jane-Ellen Long, Tadayoshi Kohno, Mark Gebhart, Moses Charikar, Tony Del Porto, Ian Goldberg, Adam Moskowitz, Tom Anderson, Jeff Mogul, David Wagner, John Wilkes, and Alex Aiken. Special thanks to John Heidemann for providing patches! in addition to bug reports and feature requests.

2.34 21.Mar.2009
Tag colors! After a Dan Wallach suggestion. Tag a paper "red" and it shows up as red in paper lists. Or instruct the system that "reject" means red and papers tagged "reject" show up as red in paper lists. Also orange, yellow, green, blue, purple, and grey.

Score columns appear as soon as any scores can be displayed. (They are still empty and hidden when no scores can be displayed.)

Add help for paper rankings.

Add ‘<label>’ elements for all checkboxes and radio buttons.

Translate HTML in review descriptions to text for offline forms. (Only simple cases like ‘<ul>’ lists.)

Include ‘[%CONFSHORTNAME%]’ prefix in paper registration emails.

Bug fixes to per-paper tag setting, account creation, "Override conflict" links, conference titles containing slashes, review viewing, and XHTML.

Thanks to Stefan Lorenz and John Wilkes.

2.33 15.Feb.2009
Re-fix "Don’t assign (X) and (Y) to the same paper."

2.32 15.Feb.2009
Add ‘au:pc’ search, which returns papers whose contact authors contain at least one PC member.

Bug fixes: Correctly quote passwords sent in mail URLs, and fix "Don’t assign (X) and (Y) to the same paper."

Other nits, including sending more emails when authors withdraw papers during the review period.

Thanks to John Wilkes, Jeff Mogul, Stefan Lorenz, and Benjamin Pierce.

2.31 26.Jan.2009
Administrators can delete users.

LDAP improvements: Autocreate new LDAP users, and allow emailing LDAP users. Thanks to David Ames of the Linux Foundation.

Bug fixes: Allow chairs to remove double-twiddle tags. Avoid error message when adding the first voting tag. Display improvements. Slightly better support for browsers without Javascript.

2.30 7.Jan.2009
Add chair-only tags: double-twiddle tags, like ‘~~tag’, are only visible to and changeable by chairs and administrators. Andrew Myers idea.

Bug fix: Advanced search > With *any* of the words works. Reported by John Wilkes.

Other UI tweaks. Additional options ‘$Opt["extraFooter"]’ (Jeff Mogul) and ‘$Opt["noPapers"]’ (C. Craig Ross).

2.29 1.Jan.2009
Bug fix release. Fixes bugs in tag search and tag setting, some reported by John Wilkes.

2.28 20.Dec.2008
Allow periods in email addresses (Jeff Mogul).

2.27 16.Dec.2008
Search results: Add tons of Display options, load them all by Ajax, and chairs gain a "Make these options the default" link.

Search: Fix searches that mix letters and non-letters.

Mail tool: Add "Cc" and "Reply-To" fields accessible to chairs.

Preliminary multiconference support: run multiple conference sites from a single installation. See README.

Paper view improvements.

Support older pdftohtml 0.36 programs (Anton Cohen).

You can choose the time zone and request 24-hour time.

Thanks to Anton Cohen, Benjamin Pierce, Alan Parry, Margo Seltzer, Mark Gebhart, Paolo Faraboschi, John Wilkes, Dina Papagiannaki, and others.

2.26 27.Oct.2008
Submitters can be forced to define what type of conflict a PC member has. Requested by Dina Papagiannaki.

Administrator search results can display reviewers. Requested by Benjamin Pierce and Mark Gebhart.

Improve review ratings.

Bug fixes: Avoid infinite doc/ URL redirections, correctly track review tokens (Mike Marty requests).

Ordered tagging improvements: "Add ordered" preserves old order values; "Add ordered" can insert papers into an existing tag order at a specific point.

Search bug fixes: ‘1-10 OR foo’ works correctly, as does ‘1-10 -6’.

Search list PDF icons link to final papers when they are available (Fred Douglis request).

Many help and usability improvements inspired by Benjamin Pierce requests.

2.25 22.Sep.2008
Many bug fixes for new-style paper views.

Comments: Now ALL comments are "tied to the reviews." Comment entry gives you three visibility choices, as radio buttons: "PC reviewers only," "PC and external reviewers," and "Authors and reviewers." Previous "tied to reviews" plan considered confusing, and external reviewers selection requested, by Benjamin Pierce.

Comment notifications: Limit emails to once every 3 hours, to avoid comment notification storms when people edit authors’ responses. Requested by Benjamin Pierce.

Ranks: "Calculate rank" tag action for chairs uses Schulze’s algorithm (a Condorcet method) to calculate a global rank tag from users’ local ranks. Code also supports the CIVS-Ranked Pairs algorithm developed by Andrew Myers for his CIVS (Condorcet Internet Voting Service), as well as range voting and IRV. Special thanks to Andrew Myers for answering questions and providing a useful test case.

Search for specific submission option values with ‘opt:name=value’.

External reviewer request emails include "accept review" and "refuse review" links that, when clicked, record the reviewer’s choice. ("Accept review" marks a review as "in progress", rather than "not started"; "refuse review" refuses it.) Benjamin Pierce request.

Bug fixes and improvements to settings pages, search, review tokens, comment display, database interaction, "ASCII art" detection in reviews, wording.

Thanks also to Benjamin Pierce, Richard Gass, Michael Vrable, and others.

2.24 22.Aug.2008
Major changes

* New paper display. Paper, review, and comment views are unified into a single display format. The paper view shows initial words of abstract and compressed author list; both are easily unfoldable. Tags, discussion leads, shepherds, review preferences, PC conflicts, and other PC-type information appear in a strip down the left hand side. Paper views summarize comment counts and comment authorship. I think this is a huge improvement.

* Voting tags. Chairs can define tags used for voting, with vote allotments, as in ‘vote#20’. PC members vote for papers by assigning the corresponding twiddle tag, as in ‘~vote#1’. The system prevents users from going over their allotments, and automagically maintains a public ‘vote’ tag that sums users’ votes.

* Ranking tag. Preliminary support for paper rankings via the tags system.

* Review ratings are searchable and gain more options. The current set of ratings is "Average, Very helpful, Not complete, Not convincing, Not constructive, Not correct." (Is this too many?) The home page reports a user’s rated reviews. Searching for ‘rate:+’ finds positively rated reviews, ‘rate:-’ negatively rated reviews, and e.g. ‘rate:convincing’ finds "not convincing" rated reviews. Robbert van Renesse feedback was very helpful.

New features and new behavior

* New search syntax: Support partial word matches, as in ‘foo*’ or ‘bl*ah’. Search for a tag in reverse order with ‘rorder:tag’. Search within tag orders with, for instance, ‘tag:pcrating#2’ or ‘tag:pcrating#>2’ (Rich Draves request). Search for incomplete reviews with ‘ire:whatever’ (Rich Draves request). Chairs and administrators can search other users’ twiddle tags, as in ‘tag:frank~vote’.

* Ordered tags: The "define ordered" and "add ordered" tag actions skip order steps; for example, they might assign order 1, 3, 4, 7, 8, 10. This hides information from conflicted PC members, since they can no longer infer conflicted papers’ positions by looking for gaps. New "Define sequential" and "Add sequential" actions do the old sequential style.

* Search highlight improvements: Searching only highlights terms in the relevant fields; for example, ‘au:john’ won’t highlight "john" in the title. Also automagically unfold any field that contains a highlight.

* Offline reviewing improvements. Blank review forms ignored on upload, rather than causing warnings (Rebecca Isaacs request). Supposedly "ready" review forms that lack required fields are saved anyway, they’re just not marked as "ready" (Rebecca Isaacs request). The system detects and rejects attempts to upload an offline form after a review is edited online (Fred Douglis report). Clarify where numeric scores are entered (Benjamin Pierce request).

* Paper assignment UI improvements. Reorder fields, make submission behavior clearer. Automatic assignment: can shift-click on PC member ranges. Show topic interest scores and preferences as "Txxx Pyyy". Automatic assignment can clear existing assignments. Bug fixes. (Benjamin Pierce and Jeff Mogul requests)

* Comment visibility changes. Users can mark a comment as "tied to reviews," which means that PC members who haven’t read the reviews can’t see the comment either. This is more useful, arguably, than hiding comments from external reviewers. (Robbert van Renesse request)

* A tweak to Minshall score improves its behavior when papers have different numbers of reviews (Terence Kelly report).

* External reviewers can use review tokens, since owning a review token confers the right to view the corresponding paper.

Bug fixes and minor UI improvements

* The "Reviewers can see decisions" setting also applies to the PC.

* "Merge accounts" bug fixes.

* PC members always count as reviewers, even if they haven’t had any reviews assigned yet (Laurel Krieger report).

* Paper lists never show conflicted PC members counts of reviews (Fred Douglis report).

* Mail tool: Include ‘%COMMENTS%’ in mails even when sending mail before reviews are visible in the site. This is the same as the ‘%REVIEWS%’ behavior. (Jeff Mogul report) Also, issue a warning about sending mail with ‘%REVIEWS%’ or ‘%COMMENTS%’ when reviews aren’t visible on the site.

* Mail tool: If authors can see reviews only after finishing their own, then the mail tool will hide reviews and comments from authors who have not finished their own reviews. And include a warning.

* Mail tool: JavaScript discourages users from clicking on the "Send" button too early (Robbert van Renesse, Rich Draves report).

* Mail tool: Report how many emails remain to be sent.

* Mail tool: Add "Discussion leads" and "Shepherds" recipient types (Jeff Mogul request).

* Mail tool: The action log tracks sent mail (Jeff Mogul request).

* "Refuse review" reason field is bigger (Benjamin Pierce report).

* Search bug fix: ‘order:~privatetag’ works (Rich Draves report).

* Search: Add Download > Discussion leads and Download > Shepherds (Jeff Mogul request).

* Search: Add Display options > Row numbers (Rich Draves request).

* Search: Tag order searches gain an explicit search column heading so that the sort order can be reversed. Request and UI ideas from Rich Draves.

* Settings: Validate XHTML, preventing cross-site scripting bugs.

Special thanks to Robbert van Renesse.

2.23 22.Jul.2008
Do not infinite loop when sending mail to non-ASCII names associated with long email addresses. Reported by Robbert van Renesse and Rich Draves.

Report correct number of reviews on the program committee page, even if review ratings are enabled. Reported by Robbert van Renesse.

Correct PHP warnings and make compatible with older PHPs. Reported by Jeonghee Shin.

2.22 15.Jul.2008
Appearance fixes: use default controls in most cases.

Aggregated information about review ratings are provided on the PC details page.

Allow searches of review fields and scores. For example, ‘ove-mer:2>=2’ searches for papers that have at least 2 overall merit scores that are greater than or equal to 2. Requested by Rich Draves and Robbert van Renesse.

Support multiple-choice paper options (rather than checkbox). Requested by Jeff Mogul.

Improve some messages and help text.

2.21 11.May.2008
Further improve validation and Internet Explorer 6 compatibility.

2.20 11.May.2008
Improve Internet Explorer 6 compatibility. Reported by Terence Kelly. Includes Drew McLellan’s supersleight for transparent PNG support (http://24ways.org/2007/supersleight-transparent-png-in-ie6).

Some validation fixes.

Set MySQL’s max_allowed_packet on a per-session basis based on PHP’s upload_max_filesize, rather than relying on users to set max_allowed_packet correctly. A problem was reported by Sourabh Jain.

Bug fixes to preference list, English, and createdb script.

2.19 6.May.2008
Provide visible feedback on Ajax forms.

Improve manual assignments page with better conflict listings (Rebecca Isaacs).

2.18 5.May.2008
Record PC feedback about whether reviews were helpful. PC members and, optionally, external reviewers can rate one another’s reviews. Hopefully this will help improve the quality of reviews. "Was this review helpful for you?" appears above each visible review. HotCRP reports the number of ratings for each review and how many of those ratings were positive. It does not report who gave the ratings, and it never shows rating counts to authors.

The ‘$Opt["emailSender"]’ option lets you set the envelope sender in sent mail (Robbert van Renesse).

Add review tokens, which allow reviewers to edit reviews anonymously.

Prettier styles.

Bug fix: Correct commenter identities in comment emails.

Finish (?) information exposure fixes (David Andersen).

Banal works with pdftohtml 0.36 (Robbert van Renesse).

When a paper is withdrawn, its reviewers no longer need to complete their reviews (Stefan Savage).

2.17 23.Apr.2008
IMPORTANT: Continue reviewer identity leak fix via search rewrite.

Rewrite search again. Search now works like Google search. ‘-word’ excludes ‘word’ matches from the search. ‘word1 OR word2’ searches for either ‘word1’ or ‘word2’ (the OR must be uppercase). The default search box returns papers that match ALL the words. Searches in title, abstract, and authors match whole words, not portions of words. The process of building up and executing a query is cleaner and comes closer to the ideal of returning all visible information.

Paper lists report "0" reviews for papers that never got a review (rather than "0/1").

2.16 21.Apr.2008
IMPORTANT: Reviewer identity leak fix.

Improve usability with tooltips and appearance improvements (inspired by John Wilkes).

2.15 9.Apr.2008
Improve homepage with a right-hand sidebar.

PC members can download any PDF that is "ready for review," even if the submission period has not closed. A warning informs them that authors can still update.

Show SHA-1 checksums for paper submissions (Dave Andersen).

Download: Review forms (zip) returns a .zip with a separate review form file for each form (Jeff Mogul).

Display "Your discussion leads" link even before "PC can view all reviews" is set (Brad Beckmann).

Bug fix: Fix manual chair assignment page (Mark Gebhart).

Bug fix: Fix review form download from the review page (Mark Gebhart).

Bug fix: Do not reveal author names to reviewers when authors withdraw a paper already under review (Stefan Savage).

Bug fix: "Reviewers" user search returns reviewers that completed reviews for papers that have since been withdrawn.

Bug fix: Authors can see review form guidance.

Bug fix: Searching for ‘cre:>0’, etc. works.

2.14 12.Mar.2008
Review field options can take lettered values, such as A-D or X-Z, as well as numeric values.

Add support for bulk upload of review assignments, PC or external (requested by Matthew Frank).

Review preference UI improvements, including uploadable preference files (requested by Greg Minshall).

Add "private" and "secret" review fields.

Review table UI improvements.

Fix installations that set zlib.output_compression by default (Elliott Karpilovsky).

Soft limit on the number of concurrent paper format checker processes should reduce system load at submission time.

Add a setting where PC members can see reviews but not reviewer identities (requested by Matthew Frank).

Other bug fixes, UI improvements (particularly for paper submission), and documentation improvements.

Thanks to Michael Vrable, Stefan Savage, and Scott Rose.

2.13 22.Jan.2008
Add support for paper format checking with Geoff Voelker’s banal script. Thanks to Geoff for the script and debugging support, and to Harald Schiöberg for providing an initial implementation.

Fix "Monitor external reviews" (requested by Matthew Frank).

Add two more textual review fields (requested by Matthew Frank).

Set the message used to invite external reviewers via the UI (requested by Matthew Frank).

Hide comments from reviewers that should not be seen by reviewers.

URL improvements. Remove .php suffix with mod_rewrite; replace ‘paperId=’ with ‘p=’, ‘reviewId=’ with ‘r=’, ‘commentId=’ with ‘c=’.

Bug fixes and memory reduction fixes. Especially speed up first-time loads by reporting the correct Content-Length for gzipped content (problem reported by Elliott Karpilovsky).

Thanks also to Matthew Frank, Joseph Tucek, and Bernhard Ager.

2.12 30.Dec.2007
Introduce "twiddle tags", such as ‘~tag’, which are visible only to the PC members that created them. Based on a request from Matthew Frank.

Add an optional note to the reviewer that PC members can supply with review requests.

Support completely anonymous reviewers.

Automatic paper assignment can avoid assigning two PC members to the same paper. Based on a request from Matthew Frank.

Add ‘%SHEPHERD%’, etc. to the mail tool (Jon Crowcroft).

UI improvements. Especially including a one-page signin process that allows people who haven’t yet logged in to see public conference information such as deadlines and PC members.

Mail improvements to MIME encoding.

Bug fixes.

Thanks to Matthew Frank, Mike Colagrasso, David Black-Schaffer, Ken Birman, and Jon Crowcroft.

2.11 27.Oct.2007
Mail tool allows sending mail to contact authors or reviewers for selected papers.

UI fixes for conflict of interest wording and home page (thanks, Matthew Frank), autoassignment page, search help, search page.

Some fixes to MIME support, PHP uninitialized variable warnings, and paper downloads when submissions are closed (bug report from V. Arun).

2.10 24.Oct.2007
Add some support for MIME extensions; message bodies are marked UTF-8, and message headers containing UTF-8 characters are quoted according to RFC2047.

Fix a couple bugs in 2.9 having to do with sending email, entering unrequested reviews, and other things.

2.9 20.Oct.2007
Add a setting allowing PC members to see tags even for conflicted papers.

Tag names generally link to the corresponding search.

Multiple independent paper lists will improve quicklink navigation.

Add ‘notag:’ searches.

Setting description improvements.

2.8 11.Oct.2007
Bug fix: Do not reveal authors’ identities via responses.

Bug fix: Avoid losing the "open for responses" setting when updating other setting groups.

Authors’ responses are hidden from the PC until they are ready.

Improve review pretty printing for tabular-like text.

Add a setting allowing comments even if reviewing is closed.

Final copy display improvements.

Correlate soft and hard deadlines: if a hard deadline is set, but not a soft deadline, show the hard deadline to relevant users.

Other behavior improvements.

2.7 23.Aug.2007
Email notification for comments. Authors, reviewers, and PC members can request email notification when comments are added to a paper they are interested in. The system tracks a global preference and per-paper preferences, so one can say "no notifications in general, but notify me about paper 4". Notification is on by default. Requires schema changes; see the file ‘Code/updateschema.sql’.

PC members and reviewers can view a paper’s comments before they finish their own reviews for that paper.

Reviews have a "The review is ready for others to see." checkbox, instead of "Submit" vs. "Save changes" pushbuttons. The checkbox is a better UI.

Offline reviewing improvements and text review download fixes.

Support "External reviewers" mail class (Jim Larus).

Add ‘Code/updateschema.sql’.

Fix database-creation bugs introduced in Version 2.4 (!), plus some old bugs.

2.6 20.Aug.2007
New way to collect author information. Author information is entered using separate text fields for Name, Email, and Affiliation. If a user’s email is listed in the Email field of a paper’s author information, that user becomes a contact author for the paper and can edit the paper.

XHTML 1.0 Strict conformance.

Performance improvements: better cacheability for images, gzip JavaScript and CSS.

Style changes, especially on settings pages.

2.5 12.Aug.2007
Optionally collect users’ addresses and phone numbers.

2.4 12.Aug.2007
Allow setting an info message that appears on the homepage.

Add an "Abstracts" display option to search screens, filled in by Ajax.

Fix several IE problems, "Authors" checkbox on search display, "withdraw" popup dialog, and others.

Style changes.

2.3 16.Jul.2007
New action log display includes search.

Validate XHTML.

Other fixes.

2.2 11.Jul.2007
Download a text file with reviewer names and emails (Frans).

Better offline reviewing.

2.1 10.Jul.2007
IE compatibility.

2.0 9.Jul.2007
New mail system.

Popup help on review scores.

A secondary reviewer, having delegated her own review, can view other reviews as soon as the delegatee submits HER review.

Visual improvements, especially to the front page.

Other fixes.

Thanks to Akos Ledeczi.

2.0b9 16.Jun.2007
More Ajax.

Make images, JavaScript, and CSS cacheable.

Allow updates to a submitted paper without first unsubmitting the paper.

Optionally allow authors to update their submissions until the submission deadline.

Add "system administrator" role.

Tags are optionally visible on paper lists.

Email template improvements.

Visual improvements, including the search page.

Combine "View" and "Edit" paper tabs into a single "Paper" tab.

Other fixes.

Thanks to Bernhard Ager, Frans Kaashoek, and Fernando Pereira.

2.0b8 11.Mar.2007
Fix policy leak: Do not reveal reviewer identities if reviews are always anonymous!

Other fixes.

Thanks to Jeff Chase.

2.0b7 3.Mar.2007
Fix policy leak: When sending email, include only information the recipient can see.

Selectable score diagrams and score-based sort orders in paper lists.

Add "PC members can see all registered papers until submission deadline" setting.

Account list improvements.

Allow submitting a paper in one step.

Improve help.

Other fixes.

Thanks to Bernhard Ager, Jeff Chase, Frans Kaashoek, and Andrew Myers.

2.0b6 1.Feb.2007
Fix policy leak: PC members cannot see PC-only fields on review forms for their authored papers.

Fix policy leak: External reviewers can’t see reviewer identities unless the policy allows it.

Other fixes.

2.0b5 27.Jan.2007
Improve tags and help.

Ajax review preferences.

Line numbers for uploaded review form error messages.

Other fixes.

2.0b4 13.Jan.2007
Add automatic assignments.

Add review form templates.

Add paper options.

Improve IE compatibility.

Fix login from email links.

Fix grace period.

Other fixes.

2.0b3 10.Dec.2006
Move to Conference Settings pages from deadline settings.

New search settings, such as ‘re:<4’.

More help.

Remove database abstraction layer.

Other fixes.

2.0b2 1.Dec.2006
Internal updates.

2.0b1 28.Nov.2006
Initial release.