Title: WordPress update changed term IDs
Last modified: August 31, 2016

---

# WordPress update changed term IDs

 *  [corinnewinthrop](https://wordpress.org/support/users/corinnewinthrop/)
 * (@corinnewinthrop)
 * [10 years ago](https://wordpress.org/support/topic/wordpress-update-changed-term-ids/)
 * I recently updated my WordPress site from version 3.9.1 to version 4.5.1. Before
   the update, I had three terms within a taxonomy that had the IDs, of `4`, `5`
   and `6`. After the update, those IDs changed to `10`, `11`, and `12`. A few things
   on my site depended on those ID numbers, so they broke when the IDs changed.
 * I reverted back to 3.9.1 several times and tried updating WordPress, along with
   updating multiple plugins, in different orders, but the only thing that changed
   these IDs was updating WordPress. I also noticed the change only happened on 
   my terms. The IDs of my pages, posts and media attachments all stayed the same.
 * Why would a core WordPress update change the term IDs?

Viewing 1 replies (of 1 total)

 *  Moderator [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/)
 * (@sterndata)
 * Volunteer Forum Moderator
 * [10 years ago](https://wordpress.org/support/topic/wordpress-update-changed-term-ids/#post-7442529)
 * Were any of those terms shared among taxonomies (e.g., categories and tags)?
 * > [Taxonomy term splitting in 4.2: a developer guide](https://make.wordpress.org/core/2015/02/16/taxonomy-term-splitting-in-4-2-a-developer-guide/)

Viewing 1 replies (of 1 total)

The topic ‘WordPress update changed term IDs’ is closed to new replies.

## Tags

 * [IDs](https://wordpress.org/support/topic-tag/ids/)
 * [terms](https://wordpress.org/support/topic-tag/terms/)
 * [Updates](https://wordpress.org/support/topic-tag/updates/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/)
 * Last activity: [10 years ago](https://wordpress.org/support/topic/wordpress-update-changed-term-ids/#post-7442529)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics