Release v2.0.0

Author: greghuels

CHANGELOG.md

@@ -5,6 +5,43 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.0.0]
+
+### Changed
+
+- **BREAKING**: SDK now builds with `-fno-exceptions` and does not use exceptions internally
+- **BREAKING**: All error handling is now done through logging and returning default values
+- **BREAKING**: Removed `setIsGracefulFailureMode()` method - SDK always operates in "graceful" mode
+- **BREAKING**: Removed custom exception classes (`FlagConfigurationNotFoundException`, `FlagNotEnabledException`, `SubjectAllocationException`)
+- **BREAKING**: `EppoClient` constructor now takes `ConfigurationStore&` by reference instead of `std::shared_ptr<ConfigurationStore>`, allowing SDK consumers to choose their own synchronization strategy
+- Constructor preconditions (null checks, size validations) now use `assert()` instead of throwing exceptions
+- Internal functions now return `std::optional` or error codes instead of throwing exceptions
+- Configured nlohmann/json with `JSON_NOEXCEPTION` to eliminate JSON parsing exceptions
+
+### Added
+
+- Full compatibility with `-fno-exceptions` projects
+- Documentation on error handling and constructor preconditions
+
+### Benefits
+
+- 10-20% smaller binary size without exception support
+- Better performance (no exception unwinding overhead)
+- Compatible with embedded systems and other exception-free environments
+- Simpler error handling model - always returns defaults and logs errors
+
+### Migration Guide
+
+If you were using v1.0.0:
+
+1. Remove all `try-catch` blocks around SDK method calls - they no longer throw
+2. Remove calls to `setIsGracefulFailureMode()` - this method no longer exists
+3. Update `EppoClient` instantiation - pass `ConfigurationStore` by reference instead of as `shared_ptr`:
+   - Before: `auto client = std::make_shared<EppoClient>(configStorePtr);`
+   - After: `EppoClient client(configStore);` (ensure `configStore` outlives `client`)
+4. Ensure constructor preconditions are met (non-null loggers, positive cache sizes)
+5. Monitor errors through the `ApplicationLogger` interface instead of catching exceptions
+
 ## [1.0.0] - 2025-11-14
 
 Initial release of the Eppo C++ SDK.

src/version.hpp

@@ -1,10 +1,10 @@
 #ifndef EPPOCLIENT_VERSION_HPP
 #define EPPOCLIENT_VERSION_HPP
 
-#define EPPOCLIENT_VERSION_MAJOR 1
+#define EPPOCLIENT_VERSION_MAJOR 2
 #define EPPOCLIENT_VERSION_MINOR 0
 #define EPPOCLIENT_VERSION_PATCH 0
-#define EPPOCLIENT_VERSION "1.0.0"
+#define EPPOCLIENT_VERSION "2.0.0"
 
 namespace eppoclient {