ChatWalaʻau v0.109.0

This release moves the five per-task "helper" models into the Model Offering Catalog as task model assignments, and removes the dedicated per-task model environment variables. This is a breaking change -- read the upgrade note below before upgrading. It continues the catalog-only model that 0.107.0 introduced for chat and 0.108.0 for image / embeddings.

Highlights

Task model assignments (v0.109.0)

• The helper models used to generate a chat's title, extract user memory, curate agent memory, summarize a Teams meeting, and convert a natural-language question into an ontology SPARQL query are now assigned in model_offerings.jsonc via a new top-level roles block. Each role points at one of your existing chat offerings, so it inherits the correct provider, endpoint, and credentials automatically.
• Assign them three ways: the in-app Model Settings screen (a new Task model assignments section), the CLI (chatwalaau models role list | set | clear), or by hand in model_offerings.jsonc.
• An unassigned task keeps the previous behavior: it follows the chat's own model, then the catalog default. A role that points at a deleted or non-chat offering falls back to that same default (and is flagged in the UI and a startup warning) rather than failing.

A silent mis-route is fixed (v0.109.0)

• Since the catalog became the exclusive router (0.107.0), a per-task model set to a bare deployment name that was not a catalog offering could be silently routed to Azure OpenAI -- wrong on an Anthropic-, OpenAI-, or gateway-only deployment. Because a role now references a real chat offering, task models route to the correct provider by construction.

Removed and no longer read (v0.109.0)

• SESSION_TITLE_MODEL -> roles.session_title
• USER_MEMORY_EXTRACTION_MODEL -> roles.user_memory_extraction
• AGENT_MEMORY_CURATION_MODEL -> roles.agent_memory_curation
• TEAMS_MEETING_SUMMARY_MODEL -> roles.meeting_summary
• ONTOLOGY_NL_MODEL -> roles.ontology_nl

Retained and unchanged (v0.109.0)

• Every non-model setting of these features is kept: SESSION_TITLE_MODE, the user- and agent-memory toggles and caps, the Teams-meeting transcript / output settings, and the ontology enable / directory / limit settings.
• DEMO_MODE deployments are unchanged (the catalog and roles are ignored under demo). A deployment that never set any of the five variables sees no behavior change.

Upgrade notes (BREAKING)

• Only if you set one of the five variables: move the value into a roles entry -- Model Settings -> Task model assignments, chatwalaau models role set <role> <offering-id>, or by hand in model_offerings.jsonc. Until you do, that task uses the chat's own model (safe, not an error).
• Leftover legacy variables in your .env are harmless -- they are ignored, and a non-failing startup advisory names the successor role.

Included in this release

This release includes implementation work from:

• v0.109.0 through v0.109.0

Notes

• Internal design management content and architecture control artifacts are intentionally omitted from this release note.

Installation

See the repository README for setup and usage instructions.

Version

• Release version: 0.109.0
• Previous release: 0.108.0