diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1da91b3..7d3ec04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,27 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.2.0] - 2026-07-02
+
+### Added
+
+- **Native AOT and trimming compatibility** via `System.Text.Json` source generation (`PodmanJsonContext` with `[JsonSerializable]` for all library DTOs and request models).
+- `<IsAotCompatible>true</IsAotCompatible>` on the package project to surface trim/AOT Roslyn analyzers at build time.
+
+### Changed
+
+- Internal JSON serialization/deserialization now uses explicit `JsonTypeInfo<T>` (`JsonSerializer.Serialize` / `Deserialize`) instead of reflection-based `MaksIT.Core.Extensions` `ToJson()` / `ToObject<T>()`.
+- HTTP helpers (`GetJsonAsync`, `PostJsonAsync`, `PostJsonWithoutBodyAsync`, `PostLibpodAsync`, `DeleteJsonAsync`) and `PodmanProgressSession<T>` updated to thread source-generated type metadata through all call sites.
+- `PodmanJsonContext` uses `PropertyNameCaseInsensitive = true` so Podman lowercase JSON keys map to PascalCase DTO properties.
+
+### Removed
+
+- **MaksIT.Core** package reference (JSON helpers were its only use in this library); consumers no longer pull **MaksIT.Core** transitively from **PodmanClient.DotNet**.
+
+### Thanks
+
+- [@bbartels](https://github.com/bbartels) (Benjamin Bartels) for the Native AOT / trim compatibility contribution ([#1](https://github.com/MAKS-IT-COM/podman-client-dotnet/pull/1)).
+
 ## [1.1.1] - 2026-06-28
 
 ### Changed
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 42eec7d..302af15 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -46,7 +46,7 @@ Types: `(feature):`, `(bugfix):`, `(refactor):`, `(perf):`, `(test):`, `(docs):`
 
 - **.NET 10**, nullable reference types, implicit usings.
 - **Root namespace**: `MaksIT.$(MSBuildProjectName)` in `PodmanClientDotNet.csproj`; omit `namespace` when it matches the root (client partials, abstractions).
-- **MaksIT.Results** for API outcomes; **MaksIT.Core.Extensions** for JSON (`ToJson` / `ToObject<T>`).
+- **MaksIT.Results** for API outcomes; **System.Text.Json** source generation via `PodmanJsonContext` for JSON serialization (AOT/trim-safe).
 - File-scoped namespaces and same-line braces; **Models/** use nullable reference types (`string?`, `List<T>?`, …) for optional JSON fields.
 - XML documentation on public types (DTOs, interfaces, entry types). Method-level docs on large interfaces are optional (`CS1591` suppressed).
 - Model layout helpers: `utils/tools/Polish-PodmanClientSources.ps1`, `utils/tools/Enable-ModelsNullable.ps1`.
diff --git a/assets/badges/coverage-branches.svg b/assets/badges/coverage-branches.svg
index 5fe1963..82cc3ce 100644
--- a/assets/badges/coverage-branches.svg
+++ b/assets/badges/coverage-branches.svg
@@ -1,5 +1,5 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="150" height="20" role="img" aria-label="Branch Coverage: 20.9%">
-  <title>Branch Coverage: 20.9%</title>
+<svg xmlns="http://www.w3.org/2000/svg" width="150" height="20" role="img" aria-label="Branch Coverage: 14.2%">
+  <title>Branch Coverage: 14.2%</title>
   <linearGradient id="s" x2="0" y2="100%">
     <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
     <stop offset="1" stop-opacity=".1"/>
@@ -9,13 +9,13 @@
   </clipPath>
   <g clip-path="url(#r)">
     <rect width="107.5" height="20" fill="#555"/>
-    <rect x="107.5" width="42.5" height="20" fill="#dfb317"/>
+    <rect x="107.5" width="42.5" height="20" fill="#fe7d37"/>
     <rect width="150" height="20" fill="url(#s)"/>
   </g>
   <g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="11">
     <text aria-hidden="true" x="53.75" y="15" fill="#010101" fill-opacity=".3">Branch Coverage</text>
     <text x="53.75" y="14" fill="#fff">Branch Coverage</text>
-    <text aria-hidden="true" x="128.75" y="15" fill="#010101" fill-opacity=".3">20.9%</text>
-    <text x="128.75" y="14" fill="#fff">20.9%</text>
+    <text aria-hidden="true" x="128.75" y="15" fill="#010101" fill-opacity=".3">14.2%</text>
+    <text x="128.75" y="14" fill="#fff">14.2%</text>
   </g>
 </svg>
diff --git a/assets/badges/coverage-lines.svg b/assets/badges/coverage-lines.svg
index 0088313..fb09936 100644
--- a/assets/badges/coverage-lines.svg
+++ b/assets/badges/coverage-lines.svg
@@ -1,5 +1,5 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="134.5" height="20" role="img" aria-label="Line Coverage: 10%">
-  <title>Line Coverage: 10%</title>
+<svg xmlns="http://www.w3.org/2000/svg" width="134.5" height="20" role="img" aria-label="Line Coverage: 5%">
+  <title>Line Coverage: 5%</title>
   <linearGradient id="s" x2="0" y2="100%">
     <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
     <stop offset="1" stop-opacity=".1"/>
@@ -9,13 +9,13 @@
   </clipPath>
   <g clip-path="url(#r)">
     <rect width="94.5" height="20" fill="#555"/>
-    <rect x="94.5" width="40" height="20" fill="#fe7d37"/>
+    <rect x="94.5" width="40" height="20" fill="#e05d44"/>
     <rect width="134.5" height="20" fill="url(#s)"/>
   </g>
   <g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="11">
     <text aria-hidden="true" x="47.25" y="15" fill="#010101" fill-opacity=".3">Line Coverage</text>
     <text x="47.25" y="14" fill="#fff">Line Coverage</text>
-    <text aria-hidden="true" x="114.5" y="15" fill="#010101" fill-opacity=".3">10%</text>
-    <text x="114.5" y="14" fill="#fff">10%</text>
+    <text aria-hidden="true" x="114.5" y="15" fill="#010101" fill-opacity=".3">5%</text>
+    <text x="114.5" y="14" fill="#fff">5%</text>
   </g>
 </svg>
diff --git a/assets/badges/coverage-methods.svg b/assets/badges/coverage-methods.svg
index ed493cd..c140257 100644
--- a/assets/badges/coverage-methods.svg
+++ b/assets/badges/coverage-methods.svg
@@ -1,5 +1,5 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="147.5" height="20" role="img" aria-label="Method Coverage: 3.9%">
-  <title>Method Coverage: 3.9%</title>
+<svg xmlns="http://www.w3.org/2000/svg" width="147.5" height="20" role="img" aria-label="Method Coverage: 3.4%">
+  <title>Method Coverage: 3.4%</title>
   <linearGradient id="s" x2="0" y2="100%">
     <stop offset="0" stop-color="#bbb" stop-opacity=".1"/>
     <stop offset="1" stop-opacity=".1"/>
@@ -15,7 +15,7 @@
   <g fill="#fff" text-anchor="middle" font-family="Verdana,Geneva,DejaVu Sans,sans-serif" text-rendering="geometricPrecision" font-size="11">
     <text aria-hidden="true" x="53.75" y="15" fill="#010101" fill-opacity=".3">Method Coverage</text>
     <text x="53.75" y="14" fill="#fff">Method Coverage</text>
-    <text aria-hidden="true" x="127.5" y="15" fill="#010101" fill-opacity=".3">3.9%</text>
-    <text x="127.5" y="14" fill="#fff">3.9%</text>
+    <text aria-hidden="true" x="127.5" y="15" fill="#010101" fill-opacity=".3">3.4%</text>
+    <text x="127.5" y="14" fill="#fff">3.4%</text>
   </g>
 </svg>
diff --git a/src/PodmanClient/PodmanClientDotNet.csproj b/src/PodmanClient/PodmanClientDotNet.csproj
index f6b544e..27de48d 100644
--- a/src/PodmanClient/PodmanClientDotNet.csproj
+++ b/src/PodmanClient/PodmanClientDotNet.csproj
@@ -12,7 +12,7 @@
 
     <!-- NuGet package metadata -->
     <PackageId>PodmanClient.DotNet</PackageId>
-    <Version>1.1.1</Version>
+    <Version>1.2.0</Version>
     <Authors>Maksym Sadovnychyy</Authors>
     <Company>MAKS-IT</Company>
     <Product>PodmanClient.DotNet</Product>