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CHANGELOG

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# Clixon Changelog
* [4.4.0](#440) Expected: March 2020
* [4.3.0](#430) 1 January 2020
* [4.3.3](#433)
* [4.3.2](#432)
* [4.3.1](#431)
* [4.3.0](#430) 1 January 2020
* [4.2.0](#420) 27 October 2019
* [4.1.0](#410) 18 August 2019
* [4.0.1](#401)
* [4.0.0](#400) 13 July 2019
* [4.0.1](#401)
* [3.9.0](#390) 21 Feb 2019
* [3.8.0](#380) 6 Nov 2018
* [3.7.0](#370) 22 July 2018
* [3.6.1](#361)
* [3.6.0](#360) 30 April 2018
* [3.6.1](#361)
* [3.5.0](#350) 12 February 2018
* [3.4.0](#340) 1 January 2018
* [3.3.3](#333) 25 November 2017
@ -25,9 +25,8 @@ Expected: March 2020
This release has focussed on refactoring and bugfixing. Lots of
changes to basic XML/YANG/RESTCONF code, including a tighter XML/YANG
binding. Memory profiling and new buffer growth management. Limited
new features to new optimized search functions and a new repair
callback.
binding. Memory profiling and new buffer growth management. New
features include optimized search functions and a repair callback.
### Major New features
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[search](https://clixon-docs.readthedocs.io/en/latest/xml.html#searching-in-xml)
### API changes on existing protocol/config features
* Empty values in JSON has changed to comply to RFC 7951
* JSON
* Empty values in JSON has changed to comply to RFC 7951
* empty values of yang type `empty` are encoded as: `{"x":[null]}`
* empty string values are encoded as: `{"x":""}` (changed from `null` in 4.0 and `[null]` in 4.3)
* empty containers are encoded as: `{"x":{}}`
* empty elements in unknown/anydata/anyxml encoded as: `{"x":{}}` (changed from `{"x":null}`)
* Bugfix of `config false` statement may cause change of sorting of lists in GET opertions
* JSON parse error messages change from `on line x: syntax error,..` to `json_parse: line x: syntax error`
* State data
* Bugfix of `config false` statement may cause change of sorting of lists in GET opertions
* Lists were sorted that should not have been.
* New clixon-config@2020-02-22.yang revision
* Config options
* New clixon-config@2020-02-22.yang revision
* Search index extension `search_index` for declaring which non-key variables are explicit search indexes (to support new optimized search API)
* Added `clixon-stats` state for clixon XML and memory statistics.
* Added: `CLICON_CLI_BUF_START` and `CLICON_CLI_BUF_THRESHOLD` so you can change the start and
threshold of quadratic and linear growth of CLIgen buffers (cbuf:s)
* Added: `CLICON_CLI_BUF_START` and `CLICON_CLI_BUF_THRESHOLD` so you can change the start and threshold of quadratic and linear growth of CLIgen buffers (cbuf:s)
* Added: CLICON_VALIDATE_STATE_XML for controling validation of user state XML
* JSON parse error messages change from ` on line x: syntax error,..` to `json_parse: line x: syntax error`
* Unknown-element error message is more descriptive, eg from `namespace is: urn:example:clixon` to: `Failed to find YANG spec of XML node: x with parent: xp in namespace urn:example:clixon`.
* Session-id CLI functionality delayed: "lazy evaluation"
* C-api: Changed `clicon_session_id_get(clicon_handle h, uint32_t *id)`
* Obsoleted and removed XMLDB format "tree". This function did not work. Only xml and json allowed.
* CLI
* Session-id CLI functionality delayed: "lazy evaluation"
* From a cli perspective this is a revert to 4.1 behaviour, where the cli does not immediately exit on start if the backend is not running, but with the new session-id function
* On failed validation of leafrefs, error message changed from: `No such leaf` to `No leaf <name> matching path <path>`.
* CLI Error message (clicon_rpc_generate_error()) changed when backend returns netconf error to be more descriptive:
* Error messages
* Unknown-element error message is more descriptive, eg from `namespace is: urn:example:clixon` to: `Failed to find YANG spec of XML node: x with parent: xp in namespace urn:example:clixon`.
* On failed validation of leafrefs, error message changed from: `No such leaf` to `No leaf <name> matching path <path>`.
* CLI Error message (clicon_rpc_generate_error()) changed when backend returns netconf error to be more descriptive:
* Original: `Config error: Validate failed. Edit and try again or discard changes: Invalid argument`
* New (example): `Netconf error: application operation-failed Identityref validation failed, undefined not derived from acl-base . Validate failed. Edit and try again or discard changes"
* Obsoleted and removed XMLDB format "tree". This function did not work. Only xml and json allowed.
### C-API changes on existing features (you may need to change your plugin C-code)
* `xml_new()` changed from `xml_new(name, xp, ys)` to `xml_new(name, prefix, xp, type)`
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* Extended `xml_parse_file2` and `xml_parse_string2` extended API functions with all options available.
* New concept called `yang_bind` that defines how XML symbols are bound to YANG after parsing
* Existing API same except `xml_parse_file` `endtag` argument moved to `xml_parse_file2`
* Changed `clicon_session_id_get(clicon_handle h, uint32_t *id)`
### Minor changes