Developer Notes - 2026-05 Ruleset Updates

We are continuing to work on general ruleset updates. See the main ruleset beta thread for the summary of the updates.

In order to support ruleset and extension developers, I will be making a number of notes regarding changes that should be made to bring rulesets and extensions in-line with changes to ones we directly maintain.

NOTE: I will only document the rulesets affected that are sold in the FG store or installed by default. Any updates for rulesets/extensions provided via FG Forge or other sources will need to look at the notes below when available for suggested updates.

Regards,
JPG

Ruleset and Extension developers should feel free to reach out to me for help on migrating their code to the latest version during the Test channel process. Any ruleset or extension which modifies standard effect coding behaviors or damage/heal/health behaviors in the updated rulesets will likely need updates before they can work correctly.

Rulesets currently updated for latest features:
CoreRPG, 5E, 4E, 3.5E, 2E, PFRPG2, SFRPG2, PFRPG, SFRPG, Cypher,
13A, BRP, BoL, D20M, DCC/MCC, Dolmenwood, Dune,
E20 (GIJOE/PR/TRANS), Fallout, FT, ICRPG, M&M, RMC,
Shadowdark, STA, Symbaroum, Vaesen, WoD, WOIN

Store Extensions updated for latest features:
ENP5ELUA5EEXTENSION, FLFSYM018, IPFGMCDMKW, PZOSMWPZO900010EFG

Regards,
JPG