RELEASES

# Releases

A new release happens every 6 weeks:

- 1st day on the first month of each quarter
- 15th day of the second month of each quarter


## v4.0.0 (2019-01-26)

- Multiboot as a kexec target -- Thank you Max!
  - Use with kexec, also see the new module argument
  - Experimental support for esxi, see xcmds/esxiboot
  - Integration tests for multiboot
    - Using the test kernel at: github.com/u-root/multiboot-test-kernel
  - Trampoline is written in Go assembly
  - Support for gzipped kernels
- New commands:
  - tac: Reads file lines in reverse order
  - xcmds/sshd: Like sshd, but supports port forwarding
- New packages:
  - forth: An interpreter for Forth
  - ubinary: Gives machine's native endianess
- New flags:
  - grep -c : Print counts
  - grep -i : Case insensitive search
  - uname -p : Alias for machine
- Improved arm support:
  - io command supports arm Linux kernels
  - zImage parser for kernel format
  - Basic integration tests and minimal config
- Miscellaneous improvements:
  - Consolidation of similar circleci tests into a single uroot_test.go which
    can be run with "go test"
  - Integration test for tcz
  - configs are organized into a new directory
- Fixes:
  - pkg/complete and xcmds/ash: now works in a sane way
  - Append rsdp onto kernel command line
  - A number of fixes to various symlink issues
- Tested with:
  - Linux 4.17
  - Golang 1.11


## v3.0.0 (2018-11-21)

- Reduced size of shell by 20%
- Improved QEMU-based integration tests
- New commands:
  - strace: simple process tracer
- Major bug fixes
  - Imports use correct vendored dependencies (u-bmc)
  - u-root command correctly interprets symlinks
- Tested with:
  - Linux 4.17
  - Golang 1.11


## v2.0.0 (2018-10-01)

- Large improvements to readability of GoDocs
- New commands:
  - cksum: generates md5, sha and crc checksums
  - elvish: forked from github.com/elves/elvish
  - less: pages files, courtesy of Michael Pratt
  - more: simplistic implementation of less
  - pox: builds a POrtable eXecutable as a squashfs image
- Breaking changes:
  - rush is moved to xcmds and elvish is the default shell
  - bzImage renamed to bzimage
  - time_sos renamed to timesos
  - upspin_sos renamed to upspinsos
- Major bug fixes
  - u-root command expands wildcards properly
  - scp now compliant with openssh's scp
- Tested with:
  - Linux 4.17
  - Golang 1.11


## v1.0.0 (2018-08-15)

- Initial release
- Tested with:
  - Linux 4.17
  - Golang 1.10.3