CLDR 44 Release Note

This version is currently at alpha. For production use, see the latest release.


Unicode CLDR provides key building blocks for software supporting the world's languages. CLDR data is used by all major software systems (including all mobile phones) for their software internationalization and localization, adapting software to the conventions of different languages.

In CLDR 44, the focus is on:

Locale Coverage Status

The coverage status determines how well languages are supported on laptops, phones, and other computing devices. In particular, qualifying at a Basic level is typically a requirement for being even selectable on phones as one of the user's languages. Note that for each language there are typically multiple locales, so 90 languages at Modern coverage corresponds to more than 350 locales at that coverage.

Below is the coverage in this release:

CLDR v44 Coverage

Data Changes

The following is a summary of the dtd changes which reflect changes in the structure. The relevant ones are described more fully in the data changes.


Supplemental Data


 Locale Changes

File Changes

(Aside from locale files)


New XSD files in /common/dtd/. 

These correspond to the DTDs, but do not carry the extra validity annotations.

New Test Data files in /common/testData/


Files with insufficient data

Old format keyboard:

JSON Data Changes

Specification Changes

###TBD - Will be added by Spec Beta on Oct 4


The following chart shows the growth of CLDR locale-specific data over time. It is restricted to data items in /main and /annotations directories, so it does not include the non-locale-specific data; nor does it include corrections (which typically outnumber new items). The % values are percent of the current measure of Modern coverage. That level is increases each release, so previous releases had many locales that were at Modern coverage as assessed at the time of their release. There is one line per year, even though there were multiple releases in most years.

There were generally a relatively small number of additions this cycle; the focus was improvements in quality, and changes will not show up below.


###TBD — more items will be added

Known Issues



Many people have made significant contributions to CLDR and LDML; see the Acknowledgments page for a full listing.

The Unicode Terms of Use apply to CLDR data; in particular, see Exhibit 1.

For web pages with different views of CLDR data, see