!ClassicEraFixes

A tiny, safe compatibility shim for WoW Classic Era 1.15.9.

Patch 1.15.9 moved a batch of global API functions into C_* namespaces and — unlike most retail deprecations — shipped no compatibility layer for the old global names. Addons that haven't been updated call those names and throw Lua errors. !ClassicEraFixes restores the removed globals so those addons keep working until their authors catch up.

It installs first (the leading ! sorts it ahead of every other addon), does its work silently, and then stays out of the way.

What it restores

The whole pre-C_AddOns family — IsAddOnLoaded, GetAddOnMetadata, LoadAddOn, EnableAddOn, GetAddOnInfo, GetAddOnEnableState, and the rest
StripHyperlinks
GuildRoster
SwapChatChannelByLocalID
GetWatchedFactionInfo
DebuffTypeColor — rebuilt from Blizzard's live aura data
ChatFrame_OnHyperlinkShow and TargetFrame_Update — restored so addons that hook them (via hooksecurefunc) keep firing

Why it's safe to leave installed

Every single restoration is double-guarded: it acts only when the old global is actually missing and its modern replacement exists on the client you're running. On any client where Blizzard still provides the original function, the addon does nothing at all. No configuration, no saved variables, and no runtime overhead after login.

What it is NOT

This is not a fix-all. It restores a specific, verified set of APIs that 1.15.9 removed. It does not patch bugs inside individual addons, and it won't fix breakage caused by anything other than those removed globals.

Install

Download and extract into: World of Warcraft/_classic_era_/Interface/AddOns/
Keep the folder named !ClassicEraFixes — the leading ! is what makes it load first.

Or just use the CurseForge app.

Bugs / requests

Found an addon still erroring on a removed 1.15.9 global that isn't listed above? Open an issue on GitHub with the exact Lua error and the addon's name: https://github.com/David-c0degeek/ClassicEraFixes

License

MIT. Open source — contributions welcome.