ArduinoJson 7.0.0

ℹ️ Read the blog post

Changes

• Remove BasicJsonDocument
• Remove StaticJsonDocument
• Add abstract Allocator class
• Merge DynamicJsonDocument with JsonDocument
• Remove JSON_ARRAY_SIZE(), JSON_OBJECT_SIZE(), and JSON_STRING_SIZE()
• Remove ARDUINOJSON_ENABLE_STRING_DEDUPLICATION (string deduplication cannot be disabled anymore)
• Remove JsonDocument::capacity()
• Store the strings in the heap
• Reference-count shared strings
• Always store serialized("string") by copy (#1915)
• Remove the zero-copy mode of deserializeJson() and deserializeMsgPack()
• Fix double lookup in to<JsonVariant>()
• Fix double call to size() in serializeMsgPack()
• Include ARDUINOJSON_SLOT_OFFSET_SIZE in the namespace name
• Remove JsonVariant::shallowCopy()
• JsonDocument's capacity grows as needed, no need to pass it to the constructor anymore
• JsonDocument's allocator is not monotonic anymore, removed values get recycled
• Show a link to the documentation when user passes an unsupported input type
• Remove JsonDocument::memoryUsage()
• Remove JsonDocument::garbageCollect()
• Add deserializeJson(JsonVariant, ...) and deserializeMsgPack(JsonVariant, ...) (#1226)
• Call shrinkToFit() in deserializeJson() and deserializeMsgPack()
• serializeJson() and serializeMsgPack() replace the content of std::string and String instead of appending to it
• Replace add() with add<T>() (add(T) is still supported)
• Remove createNestedArray() and createNestedObject() (use to<JsonArray>() and to<JsonObject>() instead)

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ArduinoJson 6.21.4

Changes

• Fix error 'std::string' has not been declared (issue #1967)
• Fix error 'std::string_view' has not been declared (issue #1967)
• Fix error no instance of overloaded function... on recent IAR compilers (issue #2001)

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ArduinoJson 6.21.3

Changes

• Fix compatibility with the Blynk libary (issue #1914)
• Fix double lookup in to<JsonVariant>()
• Fix double call to size() in serializeMsgPack()
• Include ARDUINOJSON_SLOT_OFFSET_SIZE in the namespace name
• Show a link to the documentation when user passes an unsupported input type

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ArduinoJson 6.21.2

Changes

• Fix compatibility with the Zephyr Project (issue #1905)
• Allow using PROGMEM outside of Arduino (issue #1903)
• Set default for ARDUINOJSON_ENABLE_PROGMEM to 1 on AVR

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ArduinoJson 6.21.1

Changes

• Double speed of DynamicJsonDocument::garbageCollect()
• Fix compatibility with GCC 5.2 (issue #1897)

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ArduinoJson 6.21.0

ℹ️ Read the blog post

Changes

• Drop support for C++98/C++03. Minimum required is C++11.
• Remove ARDUINOJSON_NAMESPACE; use ArduinoJson instead.
• Make string support generic (issue #1807)

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ArduinoJson 6.20.1

Changes

• Remove explicit exclusion of as<char*>() and as<char>() (issue #1860)
  If you try to call them, you'll now get the same error message as any unsupported type.
  You could also add a custom converter for char* and char.

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ArduinoJson 6.20.0

ℹ️ Read the blog post

Changes

• Add JsonVariant::shallowCopy() (issue #1343)
• Fix 9.22337e+18 is outside the range of representable values of type 'long'
• Fix comparison operators for JsonArray, JsonArrayConst, JsonObject, and JsonObjectConst
• Fix lax parsing of true, false, and null (issue #1781)
• Remove undocumented accept() functions
• Rename addElement() to add()
• Remove getElement(), getOrAddElement(), getMember(), and getOrAddMember()
• Remove undocumented JsonDocument::data() and JsonDocument::memoryPool()
• Remove undocumented JsonArrayIterator::internal() and JsonObjectIterator::internal()
• Rename things in ARDUINOJSON_NAMESPACE to match the public names
• Add documentation to most public symbols
• Remove support for naked char (was deprecated since 6.18.0)

BREAKING CHANGES

This release hides JsonVariant's functions that were only intended for internal use.
If you were using them in your programs, you must replace with operator[] and to<JsonVariant>(), like so:

// before
JsonVariant a = variant.getElement(idx);
JsonVariant b = variant.getOrAddElement(idx);
JsonVariant c = variant.getMember(key);
JsonVariant d = variant.getOrAddMember(key);

// after
JsonVariant a = variant[idx];
JsonVariant b = idx < variant.size() ? variant[idx] : variant[idx].to<JsonVariant>();
JsonVariant c = variant[key];
JsonVariant d = variant.containsKey(key) ? variant[key] : variant[key].to<JsonVariant>();

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ArduinoJson 6.19.4

Changes

• Add ElementProxy::memoryUsage()
• Add MemberProxy::memoryUsage() (issue #1730)
• Add implicit conversion from JsonDocument to JsonVariant
• Fix comparison operators with const JsonDocument&

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ArduinoJson 6.19.3

Changes

• Fix call of overloaded 'String(const char*, int)' is ambiguous
• Fix JsonString operator == and != for non-zero-terminated string
• Fix -Wsign-conversion on GCC 8 (issue #1715)
• MessagePack: serialize round floats as integers (issue #1718)

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