Slack App integration shutdown

2025-09-15: Various older command models, a number of endpoints, all of fine-tuning Effective September 15, 2025, the following deprecations will roll out. Deprecated Models: `command-r-03-2024` (and the alias `command-r`) `command-r-plus-04-2024` (and the alias `command-r-plus`) `command-light` `command` `summarize` (Refer to [the migration guide](https://docs.cohere.com/docs/summarizing-text#migration-from-summarize-to-chat-endpoint) for alternatives). For command model replacements, we recommend you use `command-r-08-2024`, `command-r-plus-08-2024`, or `command-a-03-2025` (which is the strongest-performing model across domains) instead. Retired Fine-Tuning Capabilities: Fine-tuning for the `command-light`, `command`, `command-r`, `classify`, and `rerank` models is being retired. This covers both the Cohere dashboard and API. Previously fine-tuned models will no longer be accessible. Deprecated Features and API Endpoints: `/v1/connectors` (Managed connectors for RAG) `/v1/chat` parameters: `connectors`, `search_queries_only` `/v1/generate` (Legacy generative endpoint) `/v1/summarize` (Legacy summarization endpoint) `/v1/classify` Slack App integration Coral Web UI (chat.cohere.com and coral.cohere.com)