Port optional integrations and finish Age creation and modifier lifecycle

README.md

@@ -20,13 +20,14 @@ feature completion, and random structure selection. Nether/End noise-biome
 materials now follow their native rules. Books now have Legacy-style spreads,
 animated fallback panels and saved destination labels; lectern stands, open-book
 drops, page collections, stations and basic progression are also ported. The latest
-beta adds Age libraries, crystal portals with animated fallback surfaces, saved
-instability scoring/provider selection, potion providers and four-color decay.
-Full writing recovery, live material profiling and other hazards remain pending.
-The beta does not yet provide full
-1.21.1 gameplay or optional-integration parity.
+beta includes libraries, fallback crystal portals, live instability profiling and
+hazards, ordered writing recovery, and the Link Modifier with property, seed and
+operator retirement controls. JEI, TerraBlender/Biomes O' Plenty, Serene Seasons
+and Ruins integrations are now available as optional additions. Live destination
+renderers, remaining discovery/configuration parity and the final multiplayer
+regression remain unfinished.
 See the [26.3 beta guide](ports/mc263/README.md) and
-[latest beta release notes](ports/mc263/RELEASE_NOTES_1.0.1.120-beta.1.md).
+[latest beta release notes](ports/mc263/RELEASE_NOTES_1.0.1.136-beta.1.md).
 Keep the builds and their saves separate, and back up worlds before updating.
 
 ## Getting started