Eclipse UOMo Graduation

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Today Eclipse UOMo successfully finished its Graduation Review from the Incubator.

Thanks everyone who was involved and contributed to either UOMo or the underlying Units of Measurement modules.


World Metrology Day 2025

World Metrology Day 2025 is Measurements for all times, for all people

May 20 is World Metrology Day, commemorating the anniversary of the signing of the Metre Convention in 1875.

This year, we celebrate the 150th anniversary of the signing of the Metre Convention - a milestone that underscores a century and a half of international collaboration in measurement science. Also the OIML, the International Organization of Legal Metrology, turns 70 on October 12th this year.

The theme for World Metrology Day 2025 is Measurements for all times, for all people.

We also released version 2.2.2 of SI Units.


World Metrology Day 2024

World Metrology Day 2024 is Measurement for Health

May 20 is World Metrology Day, commemorating the anniversary of the signing of the Metre Convention in 1875.

The theme for World Metrology Day 2024 is Sustainability.


10 Years JSR 363

10 Years JSR 363

Today marks the 10th anniversary of the JSR 363 approval.
Only 2 days before IoT Day 2024

Congratulations and thank you everyone who helped over all these years with JSR 363 and 385.


JSR 385 Maintenance Release 2

JSR 385 MR2

Today Maintenance Release 2 of JSR 385 was published by the Java Community Process: https://jcp.org/aboutJava/communityprocess/mrel/jsr385/index2.html

Corresponding GitHub release tags for API are: https://github.com/unitsofmeasurement/unit-api/releases/tag/2.2
for the RI: https://github.com/unitsofmeasurement/indriya/releases/tag/2.2
and for the TCK: https://github.com/unitsofmeasurement/unit-tck/releases/tag/2.2

Thanks everyone who helped with this release.


World Metrology Day 2023

World Metrology Day 2023 is Measurement for Health

May 20 is World Metrology Day, commemorating the anniversary of the signing of the Metre Convention in 1875.

The theme for World Metrology Day 2023 is Measurements supporting the global food system. This theme was chosen because of the increasing challenges of climate change, and global distribution of food in a world whose population reached 8 billion at the end of 2022.

Today the first artifacts of JSR 385 MR 2 were also released:
* uom-parent 2.2
* unit-api 2.2


Pi Day 2023

Pi Day Logo

Happy Pi Day 2023!
Pi Day is celebrated on March 14th (3/14) around the world. Pi (Greek letter “π”) is the symbol used in mathematics to represent a constant — the ratio of the circumference of a circle to its diameter — which is approximately 3.14159. Pi Day is an annual opportunity for math enthusiasts to recite the infinite digits of Pi, talk to their friends about math, and eat pie.

Check out Pi Day for more.