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Removed Features and Modules

This document contains a listing of all features and modules that were removed from RIOT at some point in time, mostly due to missing maintenance. The purpose of this list is to have a reference point for reintegrating those features in the future, if new interest arises or a new maintainer is found.

This list is not supposed to contain a change log of all the things that are being removed from RIOT, but should contain only full modules that are removed without any alternative being merged at the same time. For example things like the first netdev should not be put in this list, as a successor (former netdev2) has been merged.

How to read this list

For each high-level feature removed there should be one entry in this list. The entries should comply to the following template:

### path/feature_name [HASH of removal commit]
Author(s):
- author 1 <[email protected]>
- author 2 <[email protected]>

Reason for removal:
- give a short and comprehensive reasoning why this feature was removed
- typical reasons are:
- feature is not maintained anymore
- lack of hardware so feature can not be tested (anymore)
- feature was never used and there is no reason for keeping it

By putting the name of the removed feature and the commit hash in the same line, one can very quickly find the commit using git grep.

Listing the authors of the removed code is done for appreciation of their work. This way, their names are never removed from the RIOT repository.

Removed Features

sys/net/gnrc/nettest [c84cedb07212a90932e446f5d57391d1edd486d0]

Author:

Reasons for removal:

  • Not maintained anymore
  • Not used in GNRC

boards/chronos [ed3887ac5c1e95308c2827bce3cdca8b0f146c22]

Author(s):

Reason for removal:

  • board is quite outdated
  • board cannot be automatically tested for lack of UART
  • board has many special cases, which hurt upgrade to msp430-elf-gcc 9.x
  • the onboard radio has been unsupported for a while
  • noone seems to use the board, noone seems to maintain it

sys/net/gnrc/application_layer/tftp [0e2a62078850e1ecc74db2db4d639cf2d8fb96d3]

Author:

Reasons for removal:

  • Not maintained anymore.
  • Existing quality and security defects.

pkg/oonf_api [c829f820ee870bffc60c7df688d2da8373553212]

Author:

Reasons for removal:

  • Package has not been update since 2013.
  • Tests were never integrated to the CI.
  • NHDP, which was the only upstream user, has been removed.

sys/net/routing/nhdp [0201a2d273fe17aa1b8eeb22776ae9670551433d]

Author:

Reasons for removal:

  • Not maintained anymore.
  • Does not comply with the current RIOT programming practices.

sys/ubjson [868d37708bb674739ab4983441d6df904dd5a25f]

Author(s):

Reasons for removal:

  • Unsafe code.
  • Did not comply with RIOT standards.
  • More standard alternatives available (such as CBOR).

boards/jiminy-mega256rfr2 [232aed3e18118624b862d36bfec7cd1c21ca2d26]

Author:

Reasons for removal:

  • The board is a custom design at the RWTH Aachen, so only two persons have access to the hardware
  • It was unmaintained for several month now
  • Various refactoring PRs affected the ATmega CPU family have not been tested, it is unclear if the board is actually usable with RIOT

cpu/mips32r2_generic [a2bcd7539ce1931b7aec0077ea71dadd62c96edd]

Author:

  • Neil Jones [email protected]

  • No boards use this CPU (the only one was mips-malta).

  • (Same reasons as mips-malta)

boards/mips-malta [ee6b6b9c388b78fcec7ba6e239a6c76041b9bbb7]

Author:

Reasons for removal:

  • UART input not supported.
  • Hardware not available for testing and not available for purchase either.
  • Not actively maintained / broken for some time.

boards/pca10000 [9447cb303426d7c6348bb84999f88bf929cd6263]

Author(s):

Reason for removal:

  • this was an early development board by Nordic which was discontinued (successor: nrf51dongle)
  • no hardware available anymore for testing

boards/pca10005 [ea73cc49eacd45640b9660134c4c92b887cb2716]

Author(s):

Reason for removal:

  • this was an early development board by Nordic which was discontinued (successor: nrf51dk)
  • no hardware available anymore for testing

boards/qemu-i386 [99009af25e201bbc182d376e99df34133417be6c]

Author(s):

Reason for removal:

  • code broken and excluded from all tests for a long time
  • no maintainer available

boards/weio [cfa9580f319508f858c8fe30ecce8b2b59b6caa3]

Author(s):

Reason for removal:

  • hardware not available to the community for testing
  • original author and maintainer won't be able to maintain the code

boards/x86-multiboot-common [b3eb9b8cf23f0702fa725d536df6ad6528f84189]

Author(s):

Reason for removal:

  • code broken and excluded from all tests for a long time
  • no maintainer available

cpu/lpc11u34 [7bc271807cecbffbb01a37c56a367b98fb823573]

Author(s):

Reason for removal:

  • hardware not available to the community for testing
  • original author and maintainer won't be able to maintain the code

cpu/x86 [fc45d7c5ac3d46bfdfb21c243cd3d4881bc5c836]

Author(s):

Reason for removal:

  • code broken and excluded from all tests for a long time
  • no maintainer available

gnrc_pktbuf_duplicate_upto() [b83430aa625a1d42f11f9badf5e5cfbb8efacd99]

Author(s):

Reason for removal:

  • broke the abstraction of gnrc_pktbuf
  • its only user within the RIOT code base gnrc_ipv6_ext was reworked in f671a87fe2c539c3aecd595ae03fa4f6f209d042 so it is not needed anymore.
  • the function was deprecated in f2760c033c5f332be076b25aa212aca4007c3d65

boards/wsn430-v1_3b, boards/wsn430-v1_4 [e63cd54f3b1e002a7895bb7c46af889b341c1a15]

Author(s):

Reason for removal:

  • no longer accessible on the IoT-LAB testbed

pkg/emb6 [4f243c52eabefe709d78560ce7f1d502d737a999]

Author(s):

Reason for removal:

  • Stale upstream (last update to date in Mar 2018)
  • Ported version even older (last update Feb 2016)
  • Updating to more recent version would be more effort than its worth