AACR2 12.2B. Edition statement

12.2B1.
a) Serials. If an edition statement belongs to one of the types below, transcribe it as instructed in 1.2B. (See also 12.2B2.)
i) local edition statements
Northern ed.

ii) special interest edition statements
Éd. pour le médecin
iii) special format or physical presentation statements
Airmail ed.
Braille ed.
Library ed.
Microform ed.
iv) language edition statements
English ed.
Éd. française
v) reprint or reissue statements indicating a reissue or revision of the serial as a whole.
Reprint ed.
2nd ed.

12.2B2.
Give statements indicating regular revision or frequent updating (e.g., Rev. ed. issued every 6 months, Frequently updated) as frequency in the note area (see 12.7B1).
For serials, give statements indicating numbering (e.g., 1st ed., 1916 ed.) in the numbering area (see 12.3).

12.2B3.
If an edition statement appears in more than one language or script, transcribe the statement that is in the language or script of the title proper. If this criterion does not apply, transcribe the statement that appears first. Optionally, transcribe the parallel statement(s), each preceded by an equals sign.
Canadian ed. = Éd. canadienne
12.2C. Statements of responsibility relating to the edition
12.2C1.
Transcribe a statement of responsibility relating to one or more editions, but not to all editions, of a serial as instructed in 1.2C and 12.1F.
12.2D. Statement relating to a named revision of an edition
12.2D1.
If the item is a named revision of an edition, transcribe the statement relating to that revision as instructed in 1.2D.
English ed., 2nd ed.
Do not record statements relating to a reissue that contains no changes unless the item is considered to be of particular importance to the cataloguing agency.
12.2E. Statements of responsibility relating to a named revision of an edition
12.2E1.
Transcribe a statement of responsibility relating to one or more named revisions of an edition (but not to all such revisions) as instructed in 1.2E and 12.1F.
12.2F. Change in edition information
12.2F1.
a) Serials. If edition information is added, deleted, or changed on a subsequent issue or part and this change does not require a new description, make a note if the change is considered to be important (see 12.7B9.2).
b) Integrating resources. If edition information is added, deleted, or changed on a subsequent iteration and this change does not require a new description, change the edition area to reflect the current iteration and make a note if the change is considered to be important (see 12.7B9.2).

12.7B9.2. Change in edition information
a) Serials. Make notes on changes in edition information that occur after the first/earliest issue or part if considered to be important (see 12.2F). If the changes have been numerous, a general statement may be made.
Ed. statement varies: International ed., 1998-
(Edition statement prior to 1998: International ed. in English)
b) Integrating resources. Make notes on edition information no longer present on the current iteration, or on edition information that appeared in a different form on earlier iterations, if considered to be important (see 12.2F). If the changes have been numerous, a general statement may be made.
Replacement title pages carry successive edition statements, e.g., replacement title page received with June 1985 supplementation carries the statement “1985 edition”

12.2F. Change in edition information
12.2F1.
a) Serials. If edition information is added, deleted, or changed on a subsequent issue or part and this change does not require a new description, make a note if the change is considered to be important (see 12.7B9.2).
b) Integrating resources. If edition information is added, deleted, or changed on a subsequent iteration and this change does not require a new description, change the edition area to reflect the current iteration and make a note if the change is considered to be important (see 12.7B9.2).