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v6.14.0
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ddfe7d8b · Set version to 6.14.0 ·
Release ArduinoJson 6.14.0 
ArduinoJson 6.14.0
* Added `BasicJsonDocument::shrinkToFit()`
* Added support of `uint8_t` for `serializeJson()`, `serializeJsonPretty()`, and `serializeMsgPack()` (issue #1142)
* Added `ARDUINOJSON_ENABLE_COMMENTS` to enable support for comments (defaults to 0)
* Auto enable support for `std::string` and `std::stream` on modern compilers (issue #1156)

Looking for a human-readable version? 📰 Read the article on arduinojson.org

Changes since 6.13.0

  • Added BasicJsonDocument::shrinkToFit()
  • Added support of uint8_t for serializeJson(), serializeJsonPretty(), and serializeMsgPack() (issue #1142)
  • Added ARDUINOJSON_ENABLE_COMMENTS to enable support for comments (defaults to 0)
  • Auto enable support for std::string and std::stream on modern compilers (issue #1156) (No need to define ARDUINOJSON_ENABLE_STD_STRING and ARDUINOJSON_ENABLE_STD_STREAM anymore)
  • Improved decoding of UTF-16 surrogate pairs (PR #1157 by @kaysievers) (ArduinoJson now produces standard UTF-8 instead of CESU-8)
  • Added measureJson, measureJsonPretty, and measureMsgPack to keywords.txt (This file is used for syntax highlighting in the Arduino IDE)
  • Fixed variant.is<nullptr_t>()
  • Fixed value returned by serializeJson(), serializeJsonPretty(), and serializeMsgPack() when writing to a String
  • Improved speed of serializeJson(), serializeJsonPretty(), and serializeMsgPack() when writing to a String

BREAKING CHANGES ⚠️

Support for comments in input is now optional and disabled by default.

If you need support for comments, you must defined ARDUINOJSON_ENABLE_COMMENTS to 1; otherwise, you'll receive InvalidInput errors.

#define ARDUINOJSON_ENABLE_COMMENTS 1
#include <ArduinoJson.h>

View version history

How to install

There are several ways to install ArduinoJson, from simpler to more complex:

  1. Use the Arduino Library Manager
  2. Download ArduinoJson-v6.14.0.h put it in your project folder
  3. Download ArduinoJson-v6.14.0.zip and extract it in you libraries folder

Note: ArduinoJson-v6.14.0.h and ArduinoJson-v6.14.0.hpp are almost identical; the difference is that the .hpp keeps everything in the ArduinoJson namespace.

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