Editing INTERCAL (section)

== Version numbers ==
C-INTERCAL swaps the major and minor version numbers, compared to tradition. The HISTORY<ref>{{cite web|url=https://gitlab.com/esr/intercal/-/blob/master/HISTORY|archive-url=https://web.archive.org/web/20200505203430/https://gitlab.com/esr/intercal/-/blob/master/HISTORY | title=HISTORY file for C-INTERCAL |date=12 June 2019 | archive-date=2020-05-05 | access-date=2020-05-05 }}</ref> file shows releases starting at version 0.3 and {{as of|2020|May|lc=1}} having progressed to 0.31, but containing 1.26 between 0.26 and 0.27.

CLC-INTERCAL version numbering scheme was traditional until version 0.06, when it changed to the scheme documented in the [[README]]<ref>{{cite web|url=https://sources.debian.org/src/clc-intercal/1:1.0%7E4pre1.-94.-2-5/README/|archive-url=https://web.archive.org/web/20200505200042/https://sources.debian.org/src/clc-intercal/1:1.0%7E4pre1.-94.-2-5/README/ | title=README file for CLC-INTERCAL | archive-date=2020-05-05 | access-date=2020-05-05 }}</ref> file, which says:

<blockquote>
  * The term "version" has been replaced by "perversion" for correctness

  * The perversion number consists of a floating-point number with
    independent signs for the integer and fractional part. Negative
    fractions indicate pre-escapes (so 1.-94 means "94 pre-escapes to
    go before 1.00". Or you can just add the numbers together and get
    0.06, which is entirely a coincidence since 0.06 is not being
    developed)

  * The fractional part of a perversion number can be integer or floating
    point, with a similar meaning for the parts. The current pre-escape is
    1.-94.-2 which means "2 pre-pre-escapes to go before pre-escape 1.-94".
</blockquote>