diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..41e81ee
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,23 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* **bundler-utils,vite-plugin:** serve and cache variants via the core cache storage ([#9](https://github.com/TrigenSoftware/srcset/issues/9)) ([1f6e9dc](https://github.com/TrigenSoftware/srcset/commit/1f6e9dcb6ab48ac2a12a09ad938c52367fb4ad89))
+* **bundler-utils:** add shared bundler machinery ([#5](https://github.com/TrigenSoftware/srcset/issues/5)) ([fd072e6](https://github.com/TrigenSoftware/srcset/commit/fd072e6c76b6aef9e5cbdd5a2ce668e145881c03))
+* **cli:** add command line tool ([#2](https://github.com/TrigenSoftware/srcset/issues/2)) ([cc5c841](https://github.com/TrigenSoftware/srcset/commit/cc5c8413f5207e8aca447871518b11ab75b2a4cc))
+* **cloudflare:** add Cloudflare runtime srcset builder ([#15](https://github.com/TrigenSoftware/srcset/issues/15)) ([5289e7b](https://github.com/TrigenSoftware/srcset/commit/5289e7b4cc48fd67b156b8853561d22e66c3443e))
+* **core:** add image processing engine ([#1](https://github.com/TrigenSoftware/srcset/issues/1)) ([7ddce44](https://github.com/TrigenSoftware/srcset/commit/7ddce44f981a25f71a473f26b0a7471e957944f4))
+* **core:** disk cache storage for generated variants ([#8](https://github.com/TrigenSoftware/srcset/issues/8)) ([4a1bf7d](https://github.com/TrigenSoftware/srcset/commit/4a1bf7dd8d780f6d15ebbaa3f960041ce8fa021f))
+* **imgproxy:** add imgproxy runtime srcset builder ([#13](https://github.com/TrigenSoftware/srcset/issues/13)) ([5b93f0c](https://github.com/TrigenSoftware/srcset/commit/5b93f0c6f3a5177c476817b5d7c369f5dfc0ab4e))
+* **loader:** add webpack and Rspack loader ([#6](https://github.com/TrigenSoftware/srcset/issues/6)) ([79a0a82](https://github.com/TrigenSoftware/srcset/commit/79a0a8215162be9ce134754e5486366c23efd9fd))
+* **preact:** add Preact components ([#11](https://github.com/TrigenSoftware/srcset/issues/11)) ([e2c45ee](https://github.com/TrigenSoftware/srcset/commit/e2c45eefa4f27088fb7b546f18f24ca2203f5722))
+* **react:** add React components ([#10](https://github.com/TrigenSoftware/srcset/issues/10)) ([999d442](https://github.com/TrigenSoftware/srcset/commit/999d44295b68facebc555ba09c426d7c0e6e262a))
+* rules apply first match by default with fallthrough opt-in ([a044cb2](https://github.com/TrigenSoftware/srcset/commit/a044cb24fa181f5da595498fe8b0671444f6e546))
+* **runtime:** add browser runtime helpers ([#4](https://github.com/TrigenSoftware/srcset/issues/4)) ([9366144](https://github.com/TrigenSoftware/srcset/commit/9366144e1ca5f5287c7ffdbf443c71afe751881b))
+* **svelte:** add Svelte components ([#12](https://github.com/TrigenSoftware/srcset/issues/12)) ([1a0280b](https://github.com/TrigenSoftware/srcset/commit/1a0280bbc98e370081d71c564f678f611ca77e24))
+* **vite-plugin:** add Vite plugin ([#7](https://github.com/TrigenSoftware/srcset/issues/7)) ([be02c44](https://github.com/TrigenSoftware/srcset/commit/be02c44976c954d1e1511306e5b186b4a4aa1471))
diff --git a/packages/bundler-utils/CHANGELOG.md b/packages/bundler-utils/CHANGELOG.md
new file mode 100644
index 0000000..fb27931
--- /dev/null
+++ b/packages/bundler-utils/CHANGELOG.md
@@ -0,0 +1,12 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add shared bundler machinery ([#5](https://github.com/TrigenSoftware/srcset/issues/5)) ([fd072e6](https://github.com/TrigenSoftware/srcset/commit/fd072e6c76b6aef9e5cbdd5a2ce668e145881c03))
+* rules apply first match by default with fallthrough opt-in ([a044cb2](https://github.com/TrigenSoftware/srcset/commit/a044cb24fa181f5da595498fe8b0671444f6e546))
+* serve and cache variants via the core cache storage ([#9](https://github.com/TrigenSoftware/srcset/issues/9)) ([1f6e9dc](https://github.com/TrigenSoftware/srcset/commit/1f6e9dcb6ab48ac2a12a09ad938c52367fb4ad89))
diff --git a/packages/cli/CHANGELOG.md b/packages/cli/CHANGELOG.md
new file mode 100644
index 0000000..d9192e4
--- /dev/null
+++ b/packages/cli/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add command line tool ([#2](https://github.com/TrigenSoftware/srcset/issues/2)) ([cc5c841](https://github.com/TrigenSoftware/srcset/commit/cc5c8413f5207e8aca447871518b11ab75b2a4cc))
+* rules apply first match by default with fallthrough opt-in ([a044cb2](https://github.com/TrigenSoftware/srcset/commit/a044cb24fa181f5da595498fe8b0671444f6e546))
diff --git a/packages/cloudflare/CHANGELOG.md b/packages/cloudflare/CHANGELOG.md
new file mode 100644
index 0000000..c2ee8a4
--- /dev/null
+++ b/packages/cloudflare/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add Cloudflare runtime srcset builder ([#15](https://github.com/TrigenSoftware/srcset/issues/15)) ([5289e7b](https://github.com/TrigenSoftware/srcset/commit/5289e7b4cc48fd67b156b8853561d22e66c3443e))
diff --git a/packages/core/CHANGELOG.md b/packages/core/CHANGELOG.md
new file mode 100644
index 0000000..e014b20
--- /dev/null
+++ b/packages/core/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add image processing engine ([#1](https://github.com/TrigenSoftware/srcset/issues/1)) ([7ddce44](https://github.com/TrigenSoftware/srcset/commit/7ddce44f981a25f71a473f26b0a7471e957944f4))
+* disk cache storage for generated variants ([#8](https://github.com/TrigenSoftware/srcset/issues/8)) ([4a1bf7d](https://github.com/TrigenSoftware/srcset/commit/4a1bf7dd8d780f6d15ebbaa3f960041ce8fa021f))
diff --git a/packages/imgproxy/CHANGELOG.md b/packages/imgproxy/CHANGELOG.md
new file mode 100644
index 0000000..2292c3a
--- /dev/null
+++ b/packages/imgproxy/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add imgproxy runtime srcset builder ([#13](https://github.com/TrigenSoftware/srcset/issues/13)) ([5b93f0c](https://github.com/TrigenSoftware/srcset/commit/5b93f0c6f3a5177c476817b5d7c369f5dfc0ab4e))
diff --git a/packages/loader/CHANGELOG.md b/packages/loader/CHANGELOG.md
new file mode 100644
index 0000000..31a112c
--- /dev/null
+++ b/packages/loader/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add webpack and Rspack loader ([#6](https://github.com/TrigenSoftware/srcset/issues/6)) ([79a0a82](https://github.com/TrigenSoftware/srcset/commit/79a0a8215162be9ce134754e5486366c23efd9fd))
+* rules apply first match by default with fallthrough opt-in ([a044cb2](https://github.com/TrigenSoftware/srcset/commit/a044cb24fa181f5da595498fe8b0671444f6e546))
diff --git a/packages/preact/CHANGELOG.md b/packages/preact/CHANGELOG.md
new file mode 100644
index 0000000..bd36b21
--- /dev/null
+++ b/packages/preact/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add Preact components ([#11](https://github.com/TrigenSoftware/srcset/issues/11)) ([e2c45ee](https://github.com/TrigenSoftware/srcset/commit/e2c45eefa4f27088fb7b546f18f24ca2203f5722))
diff --git a/packages/react/CHANGELOG.md b/packages/react/CHANGELOG.md
new file mode 100644
index 0000000..a1685e6
--- /dev/null
+++ b/packages/react/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add React components ([#10](https://github.com/TrigenSoftware/srcset/issues/10)) ([999d442](https://github.com/TrigenSoftware/srcset/commit/999d44295b68facebc555ba09c426d7c0e6e262a))
diff --git a/packages/runtime/CHANGELOG.md b/packages/runtime/CHANGELOG.md
new file mode 100644
index 0000000..f980cb0
--- /dev/null
+++ b/packages/runtime/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add browser runtime helpers ([#4](https://github.com/TrigenSoftware/srcset/issues/4)) ([9366144](https://github.com/TrigenSoftware/srcset/commit/9366144e1ca5f5287c7ffdbf443c71afe751881b))
diff --git a/packages/svelte/CHANGELOG.md b/packages/svelte/CHANGELOG.md
new file mode 100644
index 0000000..039706c
--- /dev/null
+++ b/packages/svelte/CHANGELOG.md
@@ -0,0 +1,10 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add Svelte components ([#12](https://github.com/TrigenSoftware/srcset/issues/12)) ([1a0280b](https://github.com/TrigenSoftware/srcset/commit/1a0280bbc98e370081d71c564f678f611ca77e24))
diff --git a/packages/vite-plugin/CHANGELOG.md b/packages/vite-plugin/CHANGELOG.md
new file mode 100644
index 0000000..95d0a28
--- /dev/null
+++ b/packages/vite-plugin/CHANGELOG.md
@@ -0,0 +1,11 @@
+# Changelog
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 1.0.0 (2026-08-08)
+
+### Features
+
+* add Vite plugin ([#7](https://github.com/TrigenSoftware/srcset/issues/7)) ([be02c44](https://github.com/TrigenSoftware/srcset/commit/be02c44976c954d1e1511306e5b186b4a4aa1471))
+* serve and cache variants via the core cache storage ([#9](https://github.com/TrigenSoftware/srcset/issues/9)) ([1f6e9dc](https://github.com/TrigenSoftware/srcset/commit/1f6e9dcb6ab48ac2a12a09ad938c52367fb4ad89))