v0.21.1-alpha0

CHANGELOG.md: minor edits for 0.21.0

v0.21.0

• In-memory databases!
• Various Sync improvements and new APIs

Check the changelog for details.

PS.: ObjectBox is hiring a C++ developer.

v0.20.0

• Various internal improvements
• Sync clients may now supply multiple URLs for client-side load balancing and failover

Check changelog for details.

PS.: ObjectBox is hiring a C++ developer.

v0.19.0

A few of the changes:

• New K/V validation option on opening the store
• Support scalar vector types with basic queries (APIs only, no generator support)
• Fixes two query issues

Check the full changelog for details.

PS.: ObjectBox is hiring a C++ developer.

v0.18.1

Recommended bugfix release; please update.

• Fixes "Could not put (-30786)", which may occur in some corner cases on some platforms.

PS.: ObjectBox is hiring a C++ developer.

v0.18.0

• Date properties can now be tagged as expiration time; which can be then be easily evicted
• Tree API: various additions and improvements, e.g. OBXTreeOptionFlags to configure the tree behavior
• New query condition to match objects that have a given number of relations
• New "max data size" store setting
• Enabled stricter compiler settings
• Added stacktraces on errors (Linux only; very lightweight as it uses external addr2line or llvm-symbolizer)
• Added log callback for most important logs
• Consolidated "user data" passing as the last parameter
• Various internal improvements

C++

• Added BoxTypeless, QueryBuilderBase and QueryBase:
  these can be used without generated code and template types.
• New APIs to get the schema IDs for entity types and properties
• Added two methods to Store to await asynchronous processing
• Added "internal" namespace so that internal members do not spill into the obx namespace
• Move more implementations to OBX_CPP_FILE

Sync

• Custom protocols for Sync: plugin your own messaging protocol, which ObjectBox Sync will run on
• Improvements to run Sync Server with limited disk space (e.g. on small devices)
• Tree Sync improvements; e.g. consolidate conflicts
• WebSockets (sync protocol) is now a feature, which can be turned off (special build version)
• Performance optimizations

Check changelog for details

v0.17.0

• Added a "weak store" API providing weak reference for stores (typically used by background threads)
• Added Store ID API, e.g. getting a store by its ID
• Various internal improvements including minor optimizations for binary size and performance

C++

• New "OBX_CPP_FILE" define to place declarations in a single .cpp/.cc file: improves compilation time and results
• New "Exception" base class for all thrown exceptions
• Various internal improvements, e.g. a "internal" namespace to better distinguish from userland API

v0.16.0

Allow UTF-8 for database directories on Windows (has been available for other platforms before).

C++

• Promoted Options to a top level class, as nested classes cannot be declared forward
• New #define to disable FlatBuffers includes to simplify new project setup
• Rename Exception to DbException

Check changelog for details

v0.15.2

• Add store cloning
• Fix attaching to a reopened store

See also https://cpp.objectbox.io

v0.15.1

This version fixes non-unique indexes triggering unique constraint violations in corner cases (introduced in 0.15.0)

More details