[Ietf-languages] Records and registration forms for October 2025 ISO 639 changes

[Doug Ewell <[e-mail]>]

Here are records and registration forms for six changes made in October by the ISO 639 MA. There are three new language code elements (subtags), two updates involving reference and additional names (Description fields), and one retirement (deprecation).

The changes are listed below in order of change request number, as they are listed in the ISO 639/MA Quarterly Newsletter.

There were two additional changes made by the MA which are not reflected here. The reference and additional names for Dhivehi (dv, div) and Wolaytta (wal) were shuffled as needed to achieve alignment between all relevant sets in ISO 639. These names already appeared in the Language Subtag Registry in what is now the preferred 639 order, so no change to the Registry was needed.

The review period for these updates ends Sunday, November 16 2025 Anywhere on Earth. Please review these and send any feedback to the list.

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LANGUAGE SUBTAG MODIFICATION
File-Date: 2025-xx-xx
%%
Type: language
Subtag: osd
Description: Digor Ossetic
Description: Digor
Description: Digor Ossetian
Added: 2025-xx-xx
%%

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: language
Subtag: osd
Description: Digor Ossetic
Description: Digor
Description: Digor Ossetian

4. Intended meaning of the subtag:

5. Reference to published description of the language (book or article):

6. Any other relevant information:

This registration tracks a change made to ISO 639 effective 2025-10-15,
adding the code element [osd] for "Digor Ossetic", with "Digor" and
"Digor Ossetian" as additional names.

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2005%20July%202025%20ISO%20639%20MA%20Newsletter.pdf

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LANGUAGE SUBTAG MODIFICATION
File-Date: 2025-xx-xx
%%
Type: language
Subtag: scz
Description: Shaetlan
Added: 2025-xx-xx
%%

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: language
Subtag: scz
Description: Shaetlan

4. Intended meaning of the subtag:

5. Reference to published description of the language (book or article):

6. Any other relevant information:

This registration tracks a change made to ISO 639 effective 2025-10-15,
adding the code element [scz] for "Shaetlan".

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2005%20July%202025%20ISO%20639%20MA%20Newsletter.pdf

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LANGUAGE SUBTAG MODIFICATION
File-Date: 2025-xx-xx
%%
Type: language
Subtag: yol
Description: Yola
Added: 2009-07-29
Deprecated: 2025-xx-xx
Preferred-Value: enm
%%

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: language
Subtag: yol
Description: Yola
Deprecated: 2025-xx-xx
Preferred-Value: enm

4. Intended meaning of the subtag:

5. Reference to published description of the language (book or article):

6. Any other relevant information:

This registration tracks a change made to ISO 639 effective 2025-10-15,
merging [yol] for "Yola" into [enm] ("Middle English (1100-1500)").

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2005%20July%202025%20ISO%20639%20MA%20Newsletter.pdf

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LANGUAGE SUBTAG MODIFICATION
File-Date: 2025-xx-xx
%%
Type: language
Subtag: olb
Description: Oli-Bodiman
Added: 2025-xx-xx
%%

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: language
Subtag: olb
Description: Oli-Bodiman

4. Intended meaning of the subtag:

5. Reference to published description of the language (book or article):

6. Any other relevant information:

This registration tracks a change made to ISO 639 effective 2025-10-15,
adding the code element [olb] for "Oli-Bodiman".

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2005%20July%202025%20ISO%20639%20MA%20Newsletter.pdf

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LANGUAGE SUBTAG MODIFICATION
File-Date: 2025-xx-xx
%%
Type: language
Subtag: os
Description: Iron Ossetic
Description: Iron
Description: Iron Ossetian
Description: Ossetian
Description: Ossetic
Added: 2005-10-16
%%

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: language
Subtag: os
Description: Iron Ossetic
Description: Iron
Description: Iron Ossetian
Description: Ossetian
Description: Ossetic

4. Intended meaning of the subtag:

5. Reference to published description of the language (book or article):

6. Any other relevant information:

This registration tracks a change made to ISO 639 effective 2025-10-15,
changing the reference name for [oss] (which is represented by ISO 639
Set 1 [os] in the Language Subtag Registry) to "Iron Ossetic", adding
the additional names "Iron" and "Iron Ossetian", and retaining the
additional names "Ossetian" and "Ossetic".

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2005%20July%202025%20ISO%20639%20MA%20Newsletter.pdf

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LANGUAGE SUBTAG MODIFICATION
File-Date: 2025-xx-xx
%%
Type: language
Subtag: ny
Description: Chichewa
Description: Chewa
Description: Nyanja
Added: 2005-10-16
Suppress-Script: Latn
%%

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LANGUAGE SUBTAG REGISTRATION FORM

1. Name of requester: Doug Ewell
2. E-mail address of requester: doug at ewellic.org

3. Record Requested:

Type: language
Subtag: ny
Description: Chichewa
Description: Chewa
Description: Nyanja
Suppress-Script: Latn

4. Intended meaning of the subtag:

5. Reference to published description of the language (book or article):

6. Any other relevant information:

This registration tracks a change made to ISO 639 effective 2025-10-15,
changing the reference name for [nya] (which is represented by ISO 639
Set 1 [ny] in the Language Subtag Registry) to "Chichewa", retaining the
additional name "Chewa", and retaining the previous reference name
"Nyanja" as an additional name.

For more information on the ISO 639 change, refer to:
https://iso639-3.sil.org/sites/iso639-3/files/reports/Issue%2005%20July%202025%20ISO%20639%20MA%20Newsletter.pdf


--
Doug Ewell, CC, ALB | Lakewood, CO, US | ewellic.org