diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,206 @@
 
 ## [Unreleased]
 
+## [baikai 0.7.0.0] - 2026-09-08
+
+### Added
+
+- `BaikaiError.refusalCategory` preserves an Anthropic refusal's
+  provider category. JSON adds `refusal_category`; older errors still decode.
+  Evidence schema 2.5 records the addition without changing digest inputs.
+  __Breaking__ to construct a `BaikaiError` from its full field list.
+
+- `Speed`, `Options.speed`, catalog-owned fast rates and
+  `computeCostAtSpeed`. Anthropic gates fast mode by model capability, adds the
+  beta header and records unsupported drops. Terminal pricing uses observed
+  speed, including cache duration; unreported speed is an explicit estimate.
+  Older `Model` JSON defaults the new fields safely. __Breaking__: public
+  records and sum types gain fields and constructors.
+
+- API usage now records observed service tiers, inference speed and server-tool
+  use in optional billing facts covered by evidence schema 2.2. Missing service
+  information and uncurated products produce explicit standard-rate estimates.
+  `computeCostForService` separates requested and observed service, while
+  `computeCostAtRates` prices a resolved rate set once for future speed policies.
+  Empty billing facts preserve legacy availability JSON; a CLI-reported zero
+  cost retains its reported-total source. __Breaking__: the public vocabulary
+  and records gain members.
+
+- Failed trace terminals now retain partial response token counts, cost basis,
+  usage availability and USD totals. Synthetic aborts leave unreported billing
+  absent; legacy failed trace JSON still decodes. __Breaking__: `TraceEvent`'s
+  `CallFailed` gains fields. See `baikai-trace-otel 0.4.0.1` for the export.
+
+- Successful trace terminals and call-log records carry optional cost basis and
+  usage availability; call logs also carry cache-write counts. Old JSON decodes
+  with absent metadata and empty additive-zero bases stay omitted from traces.
+  __Breaking__: `CallFinished` and the call-log record gain fields.
+
+- Optional `Usage.availability` and shared inclusive/exclusive billing
+  normalization, in the new `Baikai.Usage.Normalize`. OpenAI Chat/Responses and
+  Claude preserve missing cache counters as explicit estimation reasons,
+  distinguish reported zeroes, and merge cumulative usage without
+  double-counting. Schema 2.2 commits provider availability while preserving
+  legacy usage digests. __Breaking__: `Usage` gains a field.
+
+- Optional `Model.pricingPolicy`, exact whole-request context tiers,
+  and an explicit cache-duration rate resolver. Generated Astra pricing changes
+  above 272000 input tokens; Fable exposes its one-hour write price. `Cost.basis`
+  preserves calculation sources and estimation reasons when summed. Evidence
+  schema 2.2 serializes the local basis without including local pricing metadata
+  in provider commitments. __Breaking__: `Model` and `Cost` gain fields.
+
+- Separate `OpenAIResponses` dispatch and compatibility types, and
+  optional provider/model-scoped `ThinkingContent.replayState` with opaque
+  diagnostic output and backward-compatible JSON decoding. Evidence schema 2.2
+  includes replay state and optional billing facts in commitments while preserving
+  legacy encodings when those fields are absent. __Breaking__ for a `case` over
+  `Api` that is exhaustive without a wildcard.
+
+- `Baikai.Evidence.ThinkingTranslation` gains `displayText` and
+  `ThinkingAdjustment` gains `ThinkingSummaryUnavailable`, so a transport can
+  record the thinking display setting it asked for and diagnose a successful
+  response whose thinking blocks carry no readable summary. `Baikai.Compat`
+  gains `supportsForcedToolChoice`; legacy JSON defaults it to True.
+  __Breaking__ for an exhaustive `case` over `ThinkingAdjustment`.
+
+- GPT-6 Astra and Claude Fable 5.1 catalog bindings, with verified
+  pricing, token limits, and Anthropic thinking/sampling compatibility.
+
+- Repository `update-models` skill for verifying provider releases and refreshing
+  the curated JSON and generated Haskell catalog.
+
+### Fixed
+
+- Preserve OpenAI endpoint capability facts through catalog refreshes.
+
+- Chat and Claude reject provider-scoped reasoning replay they cannot encode.
+
+- Widened the `http-client-tls` bound to admit 0.4 (carried forward from the
+  tagged but never-published 0.6.0.1).
+
+## [baikai-claude 0.7.0.0] - 2026-09-08
+
+### Changed
+
+- Refusal messages include the reported category and explanation,
+  retaining the original message when neither exists. Classification remains
+  non-retryable `ContentFiltered`. Server-side fallbacks remain deliberately
+  unsupported, as recorded in ADR 0005.
+
+- Adaptive reasoning requests explicitly ask for summarized
+  thinking. Evidence schema 2.4 records the display setting and diagnoses
+  successful responses whose thinking blocks contain no readable summary.
+  Budget and absent-thinking request shapes, signed empty blocks, redacted
+  content and multi-turn replay are preserved.
+
+- Fast mode is gated by the generated model capability: it adds the Anthropic
+  beta header for a model that advertises it and records an evidence adjustment
+  for one that does not.
+
+### Fixed
+
+- Price Fable cache writes using the TTL in the shaped request,
+  including compatibility downgrades. Missing write-duration context is explicit
+  in the cost basis.
+
+- Reject forced tool choices locally on Fable 5.1, using the
+  generated `supportsForcedToolChoice` capability. Automatic tool rounds retain
+  signed empty/visible thinking, redacted blocks and prior-message order.
+
+- Widened the `http-client-tls` bound to admit 0.4 (carried forward from the
+  tagged but never-published 0.6.0.1).
+
+### Changed (dependencies)
+
+- Requires `baikai ^>=0.7.0`.
+
+## [baikai-openai 0.7.0.0] - 2026-09-08
+
+### Added
+
+- Explicit `Baikai.Provider.OpenAI.Responses` registration and
+  stream/complete provider with stateless reasoning replay, function tool turns,
+  structured output and bounded worker cleanup, across the new
+  `Baikai.Provider.OpenAI.Responses.{Request,Stream,Assembler}` modules. Astra
+  now selects this provider through a per-model catalog override; callers must
+  register it explicitly. Cache writes, billing availability and context pricing
+  are integrated.
+
+- `Baikai.Provider.OpenAI.Internal.Usage`, the shared usage mapping both the
+  Chat Completions and Responses transports read.
+
+### Fixed
+
+- Reject tools locally for models whose Chat Completions endpoint
+  disallows them, including GPT-6 Astra. Respect generated effort policies and
+  sampling restrictions, with matching translation evidence and strict refusal.
+
+- Validate Responses terminals and enforce the stream contracts.
+
+- Widened the `http-client-tls` bound to admit 0.4 (carried forward from the
+  tagged but never-published 0.6.0.1).
+
+### Changed (dependencies)
+
+- Requires `baikai ^>=0.7.0`.
+
+## [baikai-trace-otel 0.4.0.1] - 2026-09-08
+
+### Added
+
+- Successful and failed spans export `baikai.cost.basis` and
+  `baikai.usage.availability` as canonically encoded JSON. A failed span now
+  also carries the input/output token counts and USD total that
+  `baikai 0.7.0.0` retains on `CallFailed`, alongside its error status.
+
+### Changed (dependencies)
+
+- Requires `baikai ^>=0.7.0`, and now depends on `aeson ^>=2.2` to encode the
+  two new attributes.
+
+## [baikai-effectful 0.4.0.1] - 2026-09-08
+
+### Changed (dependencies)
+
+- Requires `baikai ^>=0.7.0`. No API change.
+
+## [baikai-kit 0.2.0.1] - 2026-09-08
+
+### Changed (dependencies)
+
+- Requires `baikai ^>=0.7.0`. No API change.
+
+## [baikai-agent 0.2.0.1] - 2026-09-08
+
+### Changed (dependencies)
+
+- Requires `baikai ^>=0.7.0`, `baikai-claude ^>=0.7` and
+  `baikai-openai ^>=0.7`. No API change.
+
+## [baikai 0.6.0.1] - 2026-08-30
+
+### Fixed
+
+- widened the `http-client-tls` bound to admit 0.4. The 0.4 API retains the
+  manager functions this package uses and belongs to the same TLS 2.x / Crypton
+  1.1 dependency cohort as baikai 0.6; the old `^>=0.3` cap made baikai 0.6
+  impossible to solve in applications that require Crypton 1.1.
+
+## [baikai-claude 0.6.0.1] - 2026-08-30
+
+### Fixed
+
+- widened the `http-client-tls` bound to admit 0.4, allowing applications that
+  require Crypton 1.1 to solve the dependency set.
+
+## [baikai-openai 0.6.0.1] - 2026-08-30
+
+### Fixed
+
+- widened the `http-client-tls` bound to admit 0.4, allowing applications that
+  require Crypton 1.1 to solve the dependency set.
+
 ## [baikai 0.6.0.0] - 2026-08-28
 
 ### Added
diff --git a/baikai-agent.cabal b/baikai-agent.cabal
--- a/baikai-agent.cabal
+++ b/baikai-agent.cabal
@@ -1,6 +1,6 @@
 cabal-version:   3.4
 name:            baikai-agent
-version:         0.2.0.0
+version:         0.2.0.1
 synopsis:        Unattended coding-agent runs for the Baikai abstraction
 description:
   Runs a local coding-agent command-line tool with no terminal and no
@@ -59,9 +59,9 @@
 
   build-depends:
     , aeson                        ^>=2.2
-    , baikai                       ^>=0.6.0
-    , baikai-claude                ^>=0.6
-    , baikai-openai                ^>=0.6
+    , baikai                       ^>=0.7.0
+    , baikai-claude                ^>=0.7
+    , baikai-openai                ^>=0.7
     , base                         >=4.20   && <5
     , bytestring                   ^>=0.12
     , containers                   ^>=0.7
