diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2ed7f58..cc4ca12 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,6 +61,26 @@ jobs:
           path: coverage/
           retention-days: 7
 
+  # ── Memleak (valgrind on Debian Trixie) ──────────────────────────────────
+  memleak:
+    runs-on: ubuntu-latest
+    container:
+      image: debian:trixie-slim
+      options: --security-opt seccomp=unconfined
+    needs: test
+    steps:
+      - name: Install valgrind and toolchain deps
+        run: |
+          apt-get update
+          apt-get install -y --no-install-recommends \
+            valgrind git curl xz-utils ca-certificates make gpg
+      - uses: actions/checkout@v6
+      - uses: mlugg/setup-zig@v2
+        with:
+          version: 0.15.2
+      - name: Run memleak gate
+        run: make memleak
+
   # ── Cross-compile: verify pure-Zig on Linux + macOS targets ──────────────
   cross-compile:
     runs-on: ubuntu-latest
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 480a07e..3c93608 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,21 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [0.1.1] - 2026-03-08
+
+### Changed
+
+- CI workflow now runs on pull requests only (`lint`, `test`, `coverage`, `cross-compile`), avoiding duplicate reruns on merge to `main`
+- Release workflow now runs on tag pushes only and performs its own sequential gates (`verify-version` -> `lint` -> `test` -> `cross-compile` -> `coverage`) before publishing
+- Coverage make target renamed from `test-coverage` to `coverage`; removed `test-depth` gate
+- Documentation streamlined: removed hardcoded README version text, simplified usage/architecture sections, and reduced version-specific maintenance text
+
+### Fixed
+
+- `verify-fetchable` now creates a deterministic temp workspace and valid Zig project files before `zig fetch --save`
+- `build.zig.zon` package name in smoke test now uses a valid bare Zig identifier (`.fetch_test`)
+- Release workflow version parsing accepts both `x.y` and `x.y.z`
+
 ## [0.1.0] - 2026-03-08
 
 ### Added
@@ -55,3 +70,4 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 - Caller latency test threshold adjusted to avoid flaky failures under machine load while preserving the p99 hot-path guard
 
 [0.1.0]: https://github.com/usezombie/posthog-zig/releases/tag/v0.1.0
+[0.1.1]: https://github.com/usezombie/posthog-zig/releases/tag/v0.1.1
diff --git a/Makefile b/Makefile
index a5eb77e..ff33b6a 100644
--- a/Makefile
+++ b/Makefile
@@ -5,6 +5,7 @@
 ZIG_GLOBAL_CACHE_DIR ?= $(CURDIR)/.tmp/zig-global-cache
 ZIG_LOCAL_CACHE_DIR  ?= $(CURDIR)/.tmp/zig-local-cache
 COVERAGE_MIN_LINES   ?= 60
+MEMLEAK_TARGET       ?= x86_64-linux
 
 .DEFAULT_GOAL := help
 
@@ -60,11 +61,11 @@ test-integration:  ## Run integration tests against live PostHog (requires POSTH
 
 # ── Coverage ─────────────────────────────────────────────────────────────────
 
-test-bin:  ## Build test binary for kcov
+test-bin:  ## Build test binary for kcov / memleak
 	@mkdir -p "$(ZIG_GLOBAL_CACHE_DIR)" "$(ZIG_LOCAL_CACHE_DIR)"
 	@ZIG_GLOBAL_CACHE_DIR="$(ZIG_GLOBAL_CACHE_DIR)" \
 	 ZIG_LOCAL_CACHE_DIR="$(ZIG_LOCAL_CACHE_DIR)" \
-	 zig build test-bin
+	 zig build test-bin $(if $(TARGET),-Dtarget=$(TARGET),)
 
 coverage:  ## Run kcov coverage + enforce minimum threshold
 	@command -v kcov >/dev/null 2>&1 || { echo "✗ kcov required (brew install kcov / apt-get install kcov)"; exit 1; }
@@ -95,21 +96,24 @@ bench:  ## Benchmark capture() hot-path latency
 
 memleak:  ## Run allocator leak gate
 	@echo "→ Running allocator leak gate..."
-	@$(MAKE) test-bin
 	@case "$$(uname -s)" in \
 	  Linux) \
+	    $(MAKE) test-bin TARGET="$(MEMLEAK_TARGET)"; \
 	    command -v valgrind >/dev/null 2>&1 || { echo "✗ valgrind required on Linux"; exit 1; }; \
-	    valgrind --quiet --leak-check=full --show-leak-kinds=all \
+	    POSTHOG_MEMLEAK_MODE=1 valgrind --quiet --leak-check=full --show-leak-kinds=all \
 	      --errors-for-leak-kinds=definite,possible --error-exitcode=1 \
 	      zig-out/bin/posthog-tests;; \
 	  Darwin) \
+	    $(MAKE) test-bin; \
 	    if command -v leaks >/dev/null 2>&1; then \
 	      MallocStackLogging=1 leaks -atExit -- zig-out/bin/posthog-tests >/dev/null || \
 	        echo "→ leaks unavailable in this runtime (allocator gate only)"; \
 	    else \
 	      echo "→ leaks not found; allocator gate only"; \
 	    fi;; \
-	  *) echo "→ platform=$$(uname -s): allocator gate only";; \
+	  *) \
+	    $(MAKE) test-bin; \
+	    echo "→ platform=$$(uname -s): allocator gate only";; \
 	esac
 	@echo "✓ memleak gate passed"
 
diff --git a/VERSION b/VERSION
index 49d5957..17e51c3 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.1
+0.1.1
diff --git a/build.zig.zon b/build.zig.zon
index 1c612f7..aa993c9 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,6 +1,6 @@
 .{
     .name = .posthog,
-    .version = "0.1.0",
+    .version = "0.1.1",
     .fingerprint = 0xa5fe060596d90b43,
     .minimum_zig_version = "0.15.0",
     .dependencies = .{},
diff --git a/src/client.zig b/src/client.zig
index c68308f..8dbba24 100644
--- a/src/client.zig
+++ b/src/client.zig
@@ -431,5 +431,8 @@ test "integration: capture is non-blocking (avg < 1ms per call for 1000 events)"
     const elapsed_ns = std.time.nanoTimestamp() - start;
     const avg_ns = @divFloor(elapsed_ns, 1000);
 
-    try std.testing.expect(avg_ns < 1_000_000); // < 1ms per call
+    // Valgrind instrumentation in memleak mode adds heavy runtime overhead.
+    const in_memleak_mode = std.posix.getenv("POSTHOG_MEMLEAK_MODE") != null;
+    const max_avg_ns: i128 = if (in_memleak_mode) 50_000_000 else 1_000_000;
+    try std.testing.expect(avg_ns < max_avg_ns);
 }