Notable improvements

• A new cdh (change directory using recent history) command provides a more friendly alternative to prevd/nextd and pushd/popd (#2847).
• A new argparse command is available to allow fish script to parse arguments with the same behavior as builtin commands. This also includes the fish_opt helper command. (#4190).
• Invalid array indexes are now silently ignored (#826, #4127).
• Improvements to the debugging facility, including a prompt specific to the debugger (fish_breakpoint_prompt) and a status is-breakpoint subcommand (#1310).
• string supports new lower and upper subcommands, for altering the case of strings (#4080). The case changing is not locale-aware yet.
• string escape has a new --style=xxx flag where xxx can be script, var, or url (#4150), and can be reversed with string unescape (#3543).
• History can now be split into sessions with the fish_history variable, or not saved to disk at all (#102).
• Read history is now controlled by the fish_history variable rather than the --mode-name flag (#1504).
• command now supports an --all flag to report all directories with the command. which is no longer a runtime dependency (#2778).
• fish can run commands before starting an interactive session using the new --init-command/-C options (#4164).
• set has a new --show option to show lots of information about variables (#4265).

Other significant changes

• The COLUMNS and LINES environment variables are now correctly set the first time fish_prompt is run (#4141).
• complete's --no-files option works as intended (#112).
• echo -h now correctly echoes -h in line with other shells (#4120).
• The export compatibility function now returns zero on success, rather than always returning 1 (#4435).
• Stop converting empty elements in MANPATH to "." (#4158). The behavior being changed was introduced in fish 2.6.0.
• count -h and count --help now return 1 rather than produce command help output (#4189).
• An attempt to read which stops because too much data is available still defines the variables given as parameters (#4180).
• A regression in fish 2.4.0 which prevented pushd +1 from working has been fixed (#4091).
• A regression in fish 2.6.0 where multiple read commands in non-interactive scripts were broken has been fixed (#4206).
• A regression in fish 2.6.0 involving universal variables with side-effects at startup such as set -U fish_escape_delay_ms 10 has been fixed (#4196).
• Added completions for:
  • as (#4130)
  • cdh (#2847)
  • dhcpd (#4115)
  • ezjail-admin (#4324)
  • Fabric's fab (#4153)
  • grub-file (#4119)
  • grub-install (#4119)
  • jest (#4142)
  • kdeconnect-cli
  • magneto (#4043, #4108)
  • mdadm (#4198)
  • passwd (#4209)
  • pip and pipenv (#4448)
  • s3cmd (#4332)
  • sbt (#4347)
  • snap (#4215)
  • Sublime Text 3's subl (#4277)
• Lots of improvements to completions.
• Updated Chinese and French translations.

Download links: To download the source code for fish, we suggest the file named "fish-2.7b1.tar.gz". The file downloaded from "Source code (tar.gz)" will not build correctly. The SHA-256 sum of this file 326dbea5d0f20eba54fa0b0c5525e58b4a39ebd8c52c14cfffc5f4d6cdf55385.