Sysrepo

Sysrepo version 1.4.122 features the following improvements:

- `cmake` variables for exlusive system group ownership
- more information in general security notes in `README`
- optional fix for strict kernel permission handling (see 2080)
- various bugfixes for lock problems and some corner cases

This release depends on libyang ([v1.0.225](https://github.com/CESNET/libyang/releases/tag/v1.0.225))

Sysrepo version 1.4.104 features the following improvements:

- major lock refactoring
- improves concurrency
- allows for better recovery mechanisms
- major recovery refactoring
- *sysrepo* should no longer break when applications using them are not terminated properly
- exceptions should be only extremely rare situations, which will also be covered in later releases
- `push` operational data fixes
- `cmake` option to change the accepted UID of sensitive functions
- other minor bugfixes

This release depends on libyang ([v1.0.215](https://github.com/CESNET/libyang/releases/tag/v1.0.215))

Sysrepo version 1.4.70 features the following improvements:

- more exact information about YANG feature state in sysrepoctl(1)
- allow custom SHM prefix via `SYSREPO_SHM_PREFIX` to run several sysrepo instances on one machine
- candidate datastore is reset to mirror running on `sr_unlock()`
- several other bugfixes

This release depends on libyang ([v1.0.184](https://github.com/CESNET/libyang/releases/tag/v1.0.184))

Sysrepo version 1.4.66 features the following improvements:

- serious lost changes bug fixed
- defaults handling fixes
- other minor bugfixes

This release depends on libyang ([v1.0.167](https://github.com/CESNET/libyang/releases/tag/v1.0.167))

Sysrepo version 1.4.58 features the following improvements:

- `operational` subscriptions default values handling
- provide `ietf-yang-library` data internally
- support for state `leaves` and `leaf-lists` and their defaults
- permissions fixes
- fixed validation errors when passing various data using shared memory
- major lock refactoring fixing concurrency problems
- option to choose used `ietf-yang-library` revision
- transparent ignoring of data without read access
- new internal module `sysrepo-monitoring` with information about current connections and subscriptions
- many other bugfixes

This release depends on libyang ([v1.0.167](https://github.com/CESNET/libyang/releases/tag/v1.0.167))

Sysrepo version 1.4.2 features the following improvements:

- support for simple deleting of all (leaf-)list instances
- optimization of some use-cases on data with many (leaf-)list instances
- option to wait for all callbacks on data changes
- default data handling improved
- `case` support
- `submodule` support fixes
- locking (concurrency) improvements
- build fixes
- permission fixes
- documentation improvements
- many other bug fixes and general polish improved

This release depends on libyang ([v1.0.130](https://github.com/CESNET/libyang/releases/tag/v1.0.130))