release: v6.1.0 — bug fixes (memory backend, binary encoding, observability, Ecto removal, tests, checkpoint ordering, state loading)

Author: Leo Louvar

RELEASE_NOTES_v6.1.0.md

@@ -0,0 +1,45 @@
+# Zixir v6.1.0 — Bug fixes
+
+Patch release with stability and correctness fixes across VectorDB, observability, checkpoints, and tests.
+
+---
+
+## Bug fixes
+
+1. **Memory storage not supported** — Added complete `:memory` backend so in-memory VectorDB works without external services.
+
+2. **JSON encoding failures** — Replaced JSON encoding with binary format where appropriate to avoid serialization failures on complex data.
+
+3. **Observability crashes** — Added defensive checks in observability code to prevent crashes under edge conditions.
+
+4. **Ecto.UUID dependency** — Removed; uses native Elixir for UUID/ID generation (no Ecto dependency).
+
+5. **Test compilation errors** — Fixed pattern matching in tests so the test suite compiles and runs cleanly.
+
+6. **Checkpoint ordering** — Uses checkpoint ID for reliable sorting so workflow checkpoints are ordered correctly.
+
+7. **State loading** — Properly extracts state from checkpoint structure when resuming workflows.
+
+---
+
+## Requirements
+
+- **Elixir** 1.14+ / OTP 25+
+- **Zig** 0.15+ (build-time; run `mix zig.get` after `mix deps.get`)
+- **Python** 3.8+ *(optional)* for ML/specialist and VectorDB Python backends
+
+## Quick start
+
+```bash
+git clone https://github.com/Zixir-lang/Zixir.git
+cd Zixir
+git checkout v6.1.0
+mix deps.get
+mix zig.get
+mix compile
+mix test
+```
+
+## License
+
+**Apache-2.0** — see [LICENSE](LICENSE).

mix.exs

@@ -1,7 +1,7 @@
 defmodule Zixir.MixProject do
   use Mix.Project
 
-  @version "6.0.0"
+  @version "6.1.0"
   @source_url "https://github.com/Zixir-lang/Zixir"
 
   def project do
@@ -44,7 +44,8 @@ defmodule Zixir.MixProject do
       {:zigler, [github: "E-xyza/zigler", ref: "0.15.2", runtime: false]},
       {:erlport, "~> 0.10"},
       {:jason, "~> 1.4"},
-      {:nimble_parsec, "~> 1.4"}
+      {:nimble_parsec, "~> 1.4"},
+      {:httpoison, "~> 2.2"}
       # Optional MLIR (Beaver): add {:beaver, "~> 0.4"} on Unix only; Kinda does not support Windows.
     ]
   end