Of course, by "Pathfinder 2e" I mean the new version of Pathfinder that has currently been released by Paizo for playtesting; Version 1.6. The type of answer I would prefer is an unordered list which lists the primary differences between the two RPG systems from a systemic level. Such as differences in combat rules, class abilities, feat changes, spell changes, etc.

For more information about expected formatting, please check the top answer here.

Play experience with Pathfinder 2e isn't required, I only need a comparison between the system and its mechanics from a technical standpoint. When information changes or becomes available for the Pathfinder 2e playtest, I'll make a new question with a bounty for an update on the mechanics changes when the completed, full version of Pathfinder 2e releases.

  • \$\begingroup\$ Related: Does Pathfinder 2e Playtest fix the “linear fighters, quadratic wizards” problem? \$\endgroup\$
    – V2Blast
    Nov 12 '18 at 3:09
  • 2
    \$\begingroup\$ Im voting to close because the playtest is changing every 2 weeks, sometimes drastically (as seen on 1.6). This answer will be outdated quickly and wont be useful to future readers. However, you may freely contact me if interested on a review on these changes. \$\endgroup\$
    – ShadowKras
    Nov 12 '18 at 10:46
  • \$\begingroup\$ @ShadowKras it's notable that 1.6 is supposed to be the last of the biweekly updates. I still agree with the "too broad" since there are a ton of differences between the versions (and the differences change based on what extra books you use, e.g. APG changes a lot). But changes moving forward probably won't be on the 2-week interval like clockwork they have been. \$\endgroup\$
    – Delioth
    Nov 12 '18 at 15:28