docs: add maintenance mode disclaimer

chore: remove discord links

build(deps): add support for `langchain>0.2` (#201)

build(deps): upgrade dependencies (#192)

fix: add missing callback method to base callback handler class (#189)

bump(ver): 0.8.4 → 0.8.5

build(deps): bump langchain dependency (#185)

build(deps): upgrade dependencies (#179)

build(deps): update dependency manager schedule

build(deps): upgrade dependencies (#178)

build(deps): upgrade dependencies (#177)

build(deps): upgrade dependencies (#175)

build(deps): upgrade dependencies (#174)

build(deps): upgrade dependencies (#173)

build(deps): upgrade dependencies (#170)