Summary

This release adds some convenience functions for JSON Pointers, introduces a contains function to check if a key is present in an object, and improves the performance of integer serialization. Furthermore, a lot of small bug fixes and improvements have been made. All changes are backward-compatible.

New Features

• Overworked the public interface for JSON Pointers. The creation of JSON Pointers is simplified with operator/ and operator/=. JSON Pointers can be inspected with empty, back, and parent_pointer, and manipulated with push_back and pop_back. #1434
• Added a boolean method contains to check whether an element exists in a JSON object with a given key. Returns false when called on non-object types. #1471 #1474

Bug Fixes

• Fixed a compilation issues with libc 2.12. #1483 #1514
• Fixed endian conversion on PPC64. #1489
• Fixed library to compile with GCC 9. #1472 #1492
• Fixed a compilation issue with GCC 7 on CentOS. #1496
• Fixed an integer overflow. #1447
• Fixed buffer flushing in serializer. #1445 #1446

Improvements

• The performance of dumping integers has been greatly improved. #1411
• Added CMake parameter JSON_Install to control whether the library should be installed (default: on). #1330
• Fixed a lot of compiler and linter warnings. #1400 #1435 #1502
• Reduced required CMake version from 3.8 to 3.1. #1409 #1428 #1441 #1498
• Added nodiscard attribute to meta(), array(), object(), from_cbor, from_msgpack, from_ubjson, from_bson, and parse. #1433

Further Changes

• Added missing headers. #1500
• Fixed typos and broken links in README. #1417 #1423 #1425 #1451 #1455 #1491
• Fixed documentation of parse function. #1473
• Suppressed warning that cannot be fixed inside the library. #1401 #1468
• Imroved package manager support:
  • Updated Buckaroo instructions. #1495
  • Improved Meson support. #1463
  • Added Conda package manager documentation. #1430
  • Added NuGet package manager documentation. #1132
• Continuous Integration
  • Removed unstable or deprecated Travis builders (Xcode 6.4 - 8.2) and added Xcode 10.1 builder.
  • Added Clang 7 to Travis CI.
  • Fixed AppVeyor x64 builds. #1374 #1414
• Updated thirdparty libraries (unbundled):
  • Catch 1.12.0 -> 1.12.2
  • Google Benchmark 1.3.0 -> 1.4.1
  • Doxygen 1.8.15 -> 1.8.16