Check your build against Samsung's documented releases for your exact model and update channel. See what changed, when it was published and where the evidence comes from.
5 Galaxy models10 model/channel pairs10/10 channels checked within 7 days
EUX and INS identify software channels. An imported phone or carrier-specific device may use a different channel even when you live in Europe or India.
Comparison of the two newest captured releases. Fields marked unchanged have the same documented value.
Build
A556EXXSGDZG2 → A556EXXSHDZH6
Android version
Android 16 (unchanged)
Security patch level
2026-07-05 → 2026-08-05
Documented release date
2026-07-23 → 2026-09-07
Specific bug fixes and feature changes are not captured in this metadata. Read Samsung's release notes for the documented changelog.
12 documented releases
Dates below are Samsung's published dates. They are not measurements from users' phones.
Build
Release date
Patch level
Android
A556EXXSHDZH6
2026-09-07
2026-08-05
Android 16
A556EXXSGDZG2
2026-07-23
2026-07-05
Android 16
A556EXXSFDZF2
2026-06-25
2026-06-05
Android 16
A556EXXUEDZE4
2026-06-01
2026-05-05
Android 16
A556EXXSECZDE
2026-05-14
2026-05-05
Android 16
A556EXXSECZD1
2026-04-15
2026-04-05
Android 16
A556EXXSDCZC4
2026-03-30
2026-03-05
Android 16
A556EXXSDCZB5
2026-03-05
2026-02-05
Android 16
A556EXXSCCZA1
2026-01-22
2026-01-01
Android 16
A556EXXSBCYL1
2025-12-17
2025-12-01
Android 16
A556EXXSBCYK2
2025-11-26
2025-11-01
Android 16
A556EXXSACYJ2
2025-10-29
2025-10-01
Android 16
Our observation history (1)
This history begins with our first captured snapshot. Earlier release dates do not imply we monitored those dates.
12 Sept 2026: First verified snapshot; latest documented build A556EXXSHDZH6.
These channels use different hardware variants (SM-A556B and SM-A556E). Their builds are not interchangeable, so we do not calculate a same-build rollout gap.
Comparison of the two newest captured releases. Fields marked unchanged have the same documented value.
Build
A566EXXSCCZG7 → A566EXXSDCZHC
Android version
Android 16 (unchanged)
Security patch level
2026-07-05 → 2026-08-05
Documented release date
2026-07-27 → 2026-09-03
Specific bug fixes and feature changes are not captured in this metadata. Read Samsung's release notes for the documented changelog.
12 documented releases
Dates below are Samsung's published dates. They are not measurements from users' phones.
Build
Release date
Patch level
Android
A566EXXSDCZHC
2026-09-03
2026-08-05
Android 16
A566EXXSCCZG7
2026-07-27
2026-07-05
Android 16
A566EXXSBCZF6
2026-06-25
2026-06-05
Android 16
A566EXXSACZE3
2026-05-28
2026-05-05
Android 16
A566EXXUACZDR
2026-05-21
2026-04-05
Android 16
A566EXXSABZD3
2026-04-23
2026-04-05
Android 16
A566EXXS9BZC6
2026-03-30
2026-03-05
Android 16
A566EXXS9BZB8
2026-03-05
2026-02-05
Android 16
A566EXXS8BZA2
2026-01-28
2026-01-01
Android 16
A566EXXS7BYL4
2025-12-17
2025-12-01
Android 16
A566EXXS7BYK4
2025-11-25
2025-11-01
Android 16
A566EXXS6BYJ5
2025-10-30
2025-10-01
Android 16
Our observation history (1)
This history begins with our first captured snapshot. Earlier release dates do not imply we monitored those dates.
12 Sept 2026: First verified snapshot; latest documented build A566EXXSDCZHC.
These channels use different hardware variants (SM-A566B and SM-A566E). Their builds are not interchangeable, so we do not calculate a same-build rollout gap.
Comparison of the two newest captured releases. Fields marked unchanged have the same documented value.
Build
S911BXXSAFZG1 → S911BXXSAFZH3
Android version
Android 16 (unchanged)
Security patch level
2026-07-05 → 2026-08-05
Documented release date
2026-07-28 → 2026-09-02
Specific bug fixes and feature changes are not captured in this metadata. Read Samsung's release notes for the documented changelog.
12 documented releases
Dates below are Samsung's published dates. They are not measurements from users' phones.
Build
Release date
Patch level
Android
S911BXXSAFZH3
2026-09-02
2026-08-05
Android 16
S911BXXSAFZG1
2026-07-28
2026-07-05
Android 16
S911BXXSAFZF5
2026-06-29
2026-06-05
Android 16
S911BXXSAFZE1
2026-05-28
2026-05-05
Android 16
S911BXXU9FZDP
2026-05-21
2026-04-05
Android 16
S911BXXS9EZCI
2026-04-16
2026-04-05
Android 16
S911BXXS9EZC1
2026-03-30
2026-03-05
Android 16
S911BXXS9EZB6
2026-03-05
2026-02-05
Android 16
S911BXXS8EZA1
2026-01-27
2026-01-01
Android 16
S911BXXS8EYK5
2025-12-23
2025-12-01
Android 16
S911BXXS8EYK2
2025-11-20
2025-11-01
Android 16
S911BXXS8EYJ3
2025-10-29
2025-10-01
Android 16
Our observation history (1)
This history begins with our first captured snapshot. Earlier release dates do not imply we monitored those dates.
12 Sept 2026: First verified snapshot; latest documented build S911BXXSAFZH3.
The latest captured build is the same in both channels. Samsung’s documented release dates are the same. This is a publication-date comparison, not a measurement of delivery to every phone.
Comparison of the two newest captured releases. Fields marked unchanged have the same documented value.
Build
S921BXXSGDZG1 → S921BXXSHDZH3
Android version
Android 16 (unchanged)
Security patch level
2026-07-05 → 2026-08-05
Documented release date
2026-07-20 → 2026-09-01
Specific bug fixes and feature changes are not captured in this metadata. Read Samsung's release notes for the documented changelog.
12 documented releases
Dates below are Samsung's published dates. They are not measurements from users' phones.
Build
Release date
Patch level
Android
S921BXXSHDZH3
2026-09-01
2026-08-05
Android 16
S921BXXSGDZG1
2026-07-20
2026-07-05
Android 16
S921BXXSFDZF2
2026-06-23
2026-06-05
Android 16
S921BXXSFDZE1
2026-06-01
2026-05-05
Android 16
S921BXXUEDZDR
2026-05-18
2026-04-05
Android 16
S921BXXSECZD1
2026-04-20
2026-04-05
Android 16
S921BXXUDCZC2
2026-03-30
2026-03-05
Android 16
S921BXXSDCZB2
2026-03-05
2026-02-05
Android 16
S921BXXSCCZA1
2026-01-21
2026-01-01
Android 16
S921BXXSBCYK8
2025-12-17
2025-12-01
Android 16
S921BXXSBCYK2
2025-11-24
2025-11-01
Android 16
S921BXXSACYJ7
2025-10-29
2025-10-01
Android 16
Our observation history (1)
This history begins with our first captured snapshot. Earlier release dates do not imply we monitored those dates.
12 Sept 2026: First verified snapshot; latest documented build S921BXXSHDZH3.
The latest captured build is the same in both channels. Samsung’s documented release dates differ by 1 day. This is a publication-date comparison, not a measurement of delivery to every phone.
Comparison of the two newest captured releases. Fields marked unchanged have the same documented value.
Build
S931BXXSBCZG3 → S931BXXSCCZH1
Android version
Android 16 (unchanged)
Security patch level
2026-07-05 → 2026-08-05
Documented release date
2026-07-14 → 2026-08-31
Specific bug fixes and feature changes are not captured in this metadata. Read Samsung's release notes for the documented changelog.
12 documented releases
Dates below are Samsung's published dates. They are not measurements from users' phones.
Build
Release date
Patch level
Android
S931BXXSCCZH1
2026-08-31
2026-08-05
Android 16
S931BXXSBCZG3
2026-07-14
2026-07-05
Android 16
S931BXXUACZF1
2026-06-15
2026-06-05
Android 16
S931BXXS9CZE1
2026-05-20
2026-05-05
Android 16
S931BXXU9CZDP
2026-05-11
2026-04-05
Android 16
S931BXXS9BZCH
2026-04-09
2026-04-05
Android 16
S931BXXS8BZC1
2026-03-24
2026-03-05
Android 16
S931BXXS8BZB5
2026-02-26
2026-02-05
Android 16
S931BXXS7BYLR
2026-01-19
2026-01-01
Android 16
S931BXXS7BYKS
2025-12-11
2025-12-01
Android 16
S931BXXS7BYK3
2025-11-20
2025-11-01
Android 16
S931BXXS6BYIF
2025-10-23
2025-10-01
Android 16
Our observation history (1)
This history begins with our first captured snapshot. Earlier release dates do not imply we monitored those dates.
12 Sept 2026: First verified snapshot; latest documented build S931BXXSCCZH1.
The latest captured build is the same in both channels. Samsung’s documented release dates are the same. This is a publication-date comparison, not a measurement of delivery to every phone.
ORIGINAL DATA SUMMARY
How often are releases documented?
We calculate intervals between distinct release dates in each channel's latest 12 captured records. These are historical publication intervals, not promised update schedules, device delivery measurements or a brand reliability score.
Same-day releases count as one date when calculating gaps. The median is the middle interval (or the mean of the two middle intervals). Models can cover different time windows; a shorter gap does not by itself establish better security or reliability.
Our monitoring began 2026-09-12. Earlier dates come from Samsung's historical ledger. Long-term monitoring conclusions need more observations.
Support promises and release delivery answer different questions
A support end date describes a manufacturer's commitment. This tracker answers which firmware release is documented for a specific channel. It cannot inspect your phone, diagnose why an update has not appeared, or predict your personal delivery date.
Where do the records come from?
Each channel links to Samsung's model/CSC page and the English release ledger selected by that page. We capture build code, Android version, release date and security patch level. We retain the 12 most recent entries per channel. A source check validates the model, record structure and dates; unfamiliar formats and failed checks retain the last verified evidence. After seven days without a successful check, comparisons require re-verification.
Which date should I compare?
The release date is the date listed in the channel's official history. The security patch level identifies the patch baseline. Our check date records when we fetched and validated the source. These dates mean different things: a September release can carry an August patch level, and a patch baseline may name a date after a build was published.
What if my build or channel is missing?
Use Settings → About phone → Software information to check the complete model number, Build number and Service provider software version. Match the exact model and EUX or INS code before comparing. Other carriers, beta builds and imported variants may not be covered. An unrecognized build receives an unconfirmed result, not an outdated verdict. Use the phone's normal update settings; this tracker does not provide firmware downloads or cross-region installation instructions.
Independent research by DevLifeCheck. Baseline collection began 12 Sept 2026. Source availability and this pilot's limited coverage can affect results.