---
title: "Release Note: DataJet v8.7.21.1 (21/07/2026)"
slug: "release-note-datajet-v8-7-21-1-21072026"
updated: 2026-07-22T16:06:09Z
published: 2026-07-22T16:06:09Z
canonical: "docs.datajet.app/release-note-datajet-v8-7-21-1-21072026"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.datajet.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Release Note: DataJet v8.7.21.1 (21/07/2026)

## Key Features

The focus of this release is on improving project wide search capabilities. Various Tech-ops bugs and minor feature requests are also addressed.

- [**Advanced Search**](/v1/docs/search-solution) - Now Includes: the ability to search across the entire project for Field Names, Discrete Values, Descriptions,  Meta data (Note:  to choose which metadata columns to include in the output grid, use "select metadata")
- **Improvements to Signals**- reductions in disk space, processing time and query times as well as additional metrics
  - [PreProcessSegments](/v1/docs/preprocesssegments) - pre-processes *.tsv files, after which tsv files can be removed.  Output files are approximately 1/3 the size of input tsv files, and are processed by ProcessSegments in approx 1.2 the time.
  - [**ProcessSegments**](/v1/docs/processsegments) - Performance improvements:
    - Processing time is reduced if PreProcessSegments is run
    - Segment query times are improved if segment accelerator files are created - once the first signal segment is calculated, query times take approx 1/2 the time to calculate.
  - **Additional metrics**- basic metrics for records in the primary contact table are available:
    - entries: total number of times hash code appeared in input files
    - total_segments: total number of segments in which hash code appears
    - unique_segments: unique number of segments in which hash code appears
  - **Primary Contact / Signal synchronisation check**
    - If "segmentMetafile" property is added to CreateTableFromFile when creating the Primary Contact Table, the unique GUID associated with the loaded **maindatafile.txt** will be stored **with** the Primary Contact Table. Signal (segment) queries will generate an error if the project signal data does not match the Primary Contact data.
  - **Analyse Segments Report** - provides user interface for setting up [AnalyseSegments](/v1/docs/analysesegments) calculations
- **Contingency Management Layer** - Phase 1 thread management to add queuing to engineering functions on large (100m+) tables.
- **Extension to** [**System Variables**](/v1/docs/system-variables): %CURRENT_DATE%
- Improved Error Handling in [XProcess](/v1/docs/xprocess) - errors that are written to the error file will be reported in the same way as engine errors.
- [**Various AMP+ Issues**](/v1/docs/release-note-datajet-vxxx-xx-xx-xxxx#amp-issues-resolved-in-this-release)

## API Calls

| Type | API |  |
| --- | --- | --- |
| MODIFIED | [CreatePackage](/v1/docs/createpackage) | if tables defined and table does not exist then error (AMP-287) |
| MODIFIED | [InjectPackage](/v1/docs/injectpackage) | packages will have an injectionId assigned (but optionally passed as 'instanceId':string). This id is stored in the definition of all injected objects. FieldTemplate objects can be imported and accessed as Template objects |
| MODIFIED | [AnalyseSegments](/v1/docs/analysesegments) | "target_nontarget" mode outputs universe as count of individual records when outputting to Excel |
| NEW | [AddNullField](/v1/docs/addnullfield) | Allows a null field of specified data type to be created |
| NEW | [AddNullFieldLike](/v1/docs/addnullfieldlike) | Allows a null field to be created where type matches another field |
| MODIFIED | [CopyDownFromTemplate](/v1/docs/copydownfromtemplate) | now collects subordinate errors. |
| NEW | [CopyDatasetCollection](/v1/docs/copydatasetcollection) | copies a dataset collection to a linked table |
| NEW | [PreProcessSegments](/v1/docs/preprocesssegments) | Pre-processes *.tsv files to produce *.tsv.hash and *.tsv.hash.seg files. Once processed, *.tsv files can be removed, reducing required disk space to ~1/3 original disk requirements |
| MODIFIED | [ProcessSegments](/v1/docs/processsegments) | Can now process *.tsv.hash and *.tsv.hash.seg files. Processing time is reduced by half. Query times are improved Additional metrics are generated - number of times a hash (unique SHA256) appears in the input data, total number of segments in which hash appears, unique number of segments in which hash appears. |
| MODIFIED | [CreateTableFromFile](/v1/docs/createtablefromfile) | - Provide **segmentMetafile** property when loading **maindatafile.txt** output from ProcessSegments to create Primary Contact Table for signals. Queries will then cross-check that Signals and Primary Contact Table match, and will generate an error if they are out of synch. - Auto-guess program modified so it can be cancelled. Return automatically if line exceeds a specified length. (AMP-81) |

### 

### AMP+ Issues Resolved in this release

- DM-447 / AMP-64 - [CreateTableFromFile](/v1/docs/createtablefromfile) corrupts data when there is a tab -  *tabs replaced with spaces in file stream when delimiter is not tab*
- DM-487 / AMP-78 - Modify [InjectPackage](/v1/docs/injectpackage) so that FieldTemplate objects can be imported and accessed as Template objects.
- DM-589 / AMP-81 - Auto-guess breaks if single mismatched quote - *auto-guess program modified so it can be cancelled. Return automatically if line exceeds a specified length.*
- DM-680 / AMP-216 - Issues with nulls in Decodes (nulls not being included in dialog) - *the null row is now included in the decode dialog*
- DM-840 / AMP-267 -Large Load "No line terminal in file" *- filename has been added to error message*
- DM-918 / AMP-290 - CopyUpFromTemplate does not support datasets (Function does not support universal and individual datasets)
- DM-933 / AMP-295 - [AnalyseSegments](/v1/docs/analysesegments) not displaying target amount properly in output - *correct value now displayed*
- DM-927 / AMP-296 - Add ability to verify entire project, not just single table or field  - *use command [**verify**](/v1/docs/command-line) in command line to iterate through all project objects*
- DM-900 / AMP-287 - [CreatePackage](/v1/docs/createpackage) allows a non-existent table to be specified in the table list - *CreatePackage fails with an error if table doesn't exist*
- DM-934 / AMP 308 - Allow text to be pasted in to Add Dataset Row dialog for IN operator when dataset is first created
- DM-930 / AMP-310 - [Postman](/v1/docs/postman) not sending emails after upgrading to unencrypted djserver.cnfg - *new email module implemented and* [*documentation*](/v1/docs/server-configuration-file) *updated.*
- DM-943 / AMP-315 - Ability to create sha256 as base64
- DM-938 / AMP-316 - Eyeota-prd01 recursive fail in Export Method
- DM-939 / AMP-317 - [yearmonth](/v1/docs/engineeringdatefunction2-22)() expression - INCORRECT RESULTS when source field is DATETIME
- DM-944 / AMP-319 - Improve error handling in [XProcess](/v1/docs/xprocess) - *XProcess now returns an error if an error has been added to the error handling file.*
- DM-956 / AMP 323 - error in stored script causes project to remain locked
- DM-962 / AMP 329 - RenameTable fails with "field not found" after doing BulkDecode - *fixed*
- DM-963 / AMP 324 - ProcessSegments: SegmentProcessReport missing some entries in new version - *missing entries added back in*
- DM-964 / AMP 331 - Postman causes the subscript it is in to show as failed in calling script, even when email is sent
- DM-967 / AMP-326 - Allow CLIENT_ANALYST user to access "Show Source Fields"
- DM-967 / AMP-327 - Allow CLIENT_ANALYST user access to Delete Table permissions
- DM-965 / AMP-332 - Push - default to the realm where the script was pulled

### Other Issues Resolved in this release

- DM 936 - Templates not refreshed on open/close project
- DM 925 - Function: [AddNullField](/v1/docs/addnullfield), [AddNullFieldLike](/v1/docs/addnullfieldlike) - allows null fields to be created, to assist with table merges.
- DM 919 - Venn : Values in dragged segment do not always have the correct filter applied
- DM 917 - MULTI-FIELD STATS -  Ability to reset report/clear all fields without needed to open a new report
- DM 916 - VENN - When dragging from Counts Grid, can drag source or resolution table records
- DM 914 - Project Explorer: Add ability to view selected dashboard in Discovery - *right-click report, select "View Report in Discovery"*
- DM 904 - MULTI-FUNCTION PROFILE (MFP) - Desktop allows string fields to be added to MFP setup grid and counted (e.g, counting cities in a zip code)
- DM 895 - OVERLAP - Once a segment has been dragged from grid, can't select grid scroll bar without triggering select
- DM 893 - AnalyseSegments - When dragging a dataset from Data Table Viewer Grid, give the dataset a useful name
- DM 891 - DATASET COLLECTIONS - Individual datasets can be dragged from the collection dialog
- DM 868 - TEMPLATES - Fields that have been hidden using Project Explorer | Show Hide Fields will not be available in Template dialogs or Dataset Row dialogs
- DM 867 - DATASET TAB - Datasets and Collections can be searched for by name
- DM 855 - REPORTS TAB - Data Table mode output is accessible from the Reports | Models tab in Project Explorer

####