#322735 by voxpelli, NancyDru for bjacob - Theming improvement to prevent search engine voting.
#324051 by NancyDru for Cactii1 - Add "Most votes" block.
#335389 by NancyDru for ISRIT - Add extra module to restrict voting on forums.
#475612 by voxpelli - Delete voting cache when node is deleted.
#489268 by NancyDru for greggles - Redirect after log in.
#573478 by Nancydru for mariano.barcia - Add summary link; more customization options.
#681942 by Garrett Albright - Redirect to referring page after voting.
#696002 by NancyDru, voxpelli - Coding standards, break out admin, delete variables on uninstall, no content types by default, vertical tabs support.
#696500 by voxpelli, marcingy - State saved as static, rather than variable_set (performance).
#709006 by voxpelli, NancyDru - Add hook_plus1_vote_access to allow modules to allow/deny voting.
#734558 by zuuperman - Disable token checking for anonymous users.
#788288 by NancyDru for e-anima - Delete votes if user is deleted.
#1010270 by NancyDru for Chill35 - Add v1 upgrade path.
#1010790 by NancyDru - Change weight to standard weight selector.
#1015808 by NancyDru - Add per-node vote disabling.
#1019898 by NancyDru - Add voting block.

Drupal.behaviors js integration (http://drupal.org/node/350624) by Evoltech
Fixed conflict with other voting modules (http://drupal.org/node/321398) by Voxpelli
Configurable weight for voting widget (http://drupal.org/node/359682) by Voxpelli

Now only the votes submitted by the Plus1 module are retrieved, and results are calculated based on these only.
The permission to vote has been renamed to play nice with the FiveStars module.

Possibly fixed a problem with JSON in Safari/Mac.
Users can now vote once on their own content.

Legacy table is not dropped for the time being, as I intend to get a proper upgrade path as to not lose the old votes from first branch.
The module now degrades gracefully without JavaScript (works without JavaScript).
Anonymous users voting is optional (when enabled, it works).

See the tutorial behind this project at: http://11heavens.com/using-ajax-in-Drupal-6