Version Log

Our version log is here to keep you informed about what's new and improved in the Results Portal. Each update includes important changes like new metric ranges, better functionality, and updates to make your results even more scientifically accurate. 

Email hello@tinyhealth.com to update to the latest system version. If you choose to update, all prior kits linked to your family’s account will be updated, including those for other family members. Flagged metrics, actions, and the microbiome summary score may change after the update. Updates may take up to 1 week, and you will receive an email notification once it is complete. Note: updates cannot be undone.

v5.1.0 - Microbiome age improvements and oxalate degradation release 
Date: 2026-06-03

We've enhanced the microbiome age metric to be more actionable, allowing you to see the specific factors influencing your results. This targeted insight empowers you to better manage your gut health by addressing age-related changes in your microbiome. You may notice a slight change in your specific microbiome age and evaluation as our improved model more accurately captures the key metrics that evolve as you age.

This update also introduces a new gut metric in beta, oxalate degradation. This metric is available in adult, child, and toddler gut kits from version 5 and later.
 

v5.0.7 - PCOS to PMOS rename
Date: 2026-05-27

We have updated all references of “polycystic ovary syndrome” (PCOS) to the new preferred name “polyendocrine metabolic ovarian syndrome” (PMOS)

v5.0.6 - Minor action plan update
Date: 2026-05-14

This update adds a new action card related to mental health conditions.

v5.0.5 - Minor action plan update
Date: 2026-05-08

This update fixes a minor bug related to displaying action cards.

v5.0.4 - Minor action plan update
Date: 2026-04-24

This update adds new action cards related to fertility.

v5.0.3 - Gut resilience score bugfix
Date: 2026-04-16

This patch fixes a minor issue calculating the gut resilience score for children and adults. Its value will increase slightly in a small number of reports

v5.0.2 - Legacy metric display bugfix
Date: 2026-04-03

This patch re-publishes legacy metrics for kits on past versions.

v5.0.1 - Action plan bugfix
Date: 2026-04-03

This patch fixes a minor action plan display issue.

v5.0.0 - Functional pipeline upgrade, new metrics, and vaginal report update
Date: 2026-03-31

This major science release provides significant updates to your Tiny Health Gut and Vaginal reports for all age groups. We've updated our reports with new, more accurate reference ranges, added new gut health insights, and refined key functional metrics for a clearer understanding of your microbiome.
 

Gut Report Updates

• New metrics, including the Oxygen Exposure Score and p-Cresol production, have been added to adult and children's gut health reports.
• The Microbiome Age metric is introduced in BETA for adults 18 years of age and older.
• Key inflammation metrics, including Hexa-LPS, Hydrogen sulfide production, and Mucus degradation indices, have been reworked. These updated indices now scale from 0 to 100 and offer significantly higher sensitivity and improved specificity.
• The legacy "Histamine-producing species" metric has been replaced with a new, highly sensitive Histamine index.
• The sensitivity and limit of detection for GABA production have been improved.
• The Maturation index for baby and toddler reports has been retrained to provide better consistency.
• We have removed older metrics that offered limited biological or clinical value to streamline reports.. All taxa from these removed metrics are still viewable under the Microbiome Breakdown section.
• Reference ranges have been completely upgraded using a new, diverse cohort of thousands of broadly healthy individuals. This provides a more accurate target for optimal wellness.
• We have updated how we interpret low-abundance microbial signals to provide more reliable evaluations in your report.

Vaginal Report Updates

• Disruptive microbe metrics have been expanded to include additional genera associated with vaginal dysbiosis.
• New vaginal fertility associations have been added to the report.
   

v4.8.3 - Vaginal association tags release
Date: 2026-03-06

This minor release adds association tags to vaginal microbiome reports and introduces a new action card for samples with CST3.

v4.8.2 - Prioritize metrics for action plan
Date: 2026-02-20

Allows prioritization of different metrics for the action plan display

v4.8.1 -  Internal reorganization
Date: 2026-01-29

This update reorganizes some internal processes.

v4.8.0 - Action Plan Reorganization
Date: 2025-12-05

This update adds new functionality to reorganize Action Plan items into discrete steps based on priority. No individual actions were added or removed
 

v4.7.1 - Patch to PRO evaluation
Date: 2025-12-05

This patch fixes a bug in the PRO evaluation logic that affected a small number of PRO gut health kits. This only impacted the overall PRO evaluation category and not any individual metrics or evaluations in the results. With this update, some adult results may shift from Typical to Borderline, or from Borderline to Needs Support. A small number of child results may shift from Needs Support to Borderline. These updated categories now accurately reflect each person’s underlying PRO metrics.
 

v4.7.0 - PRO evaluation release
Date: 2025-11-12
New Feature: PRO Evaluation Added to Tiny Health PRO Gut Health Tests
This release adds the PRO evaluation to all Tiny Health PRO Gut Health Tests for children and adults 3 years of age and older on version 4 or higher.

The PRO evaluation provides an overview of stool chemistry metrics reflecting functional gut health aspects, including digestion, inflammation, immune activity, and short-chain fatty acid balance. It integrates multiple laboratory measurements into a single interpretation: 'Needs Support,' 'Borderline,' or 'Typical,' based on established reference ranges.
Important Note: Review this evaluation with other findings and discuss with your healthcare practitioner, who can interpret results in the context of your individual health history and symptoms. Your PRO evaluation is not intended to provide medical advice or replace clinical assessment.

v4.6.2 - Internal Customization
Date: 2025-11-07

Internal changes that allow for report customization.
 

v4.6.1 - Internal Customization
Date: 2025-10-07

Internal changes that allow for report customization.
 

v4.6.0 - Partner Customization
Date: 2025-10-03

Internal changes that allow for report customization.
 

v4.5.6 - New probiotic recommendations for SCFA and Urolithin A support

Date: 2025-09-26

This release adds updated recommendations for adults based on gut microbial markers related to SCFA production and Urolithin A synthesis.

A new Action Plan card for adults is now available when Urolithin A-producing species are low or borderline low. It highlights the potential benefits of targeted synbiotics for gut health.
The existing SCFA-related card has been updated to reflect broader synbiotic options, including Seed DS-01, when butyrate, acetate, or propionate capacity is low.

Learn more about Urolithin A and the gut microbiome in our blog post.

v4.5.5 - Generate results for internal science use

Date: 2025-09-19

This minor release improves our ability to generate and store results for internal science use.

v4.5.4 - Gut serotonin associations expanded to include melatonin

Date: 2025-09-17

This minor release expands the “Serotonin production in the gut” associations to also include melatonin. These associations are displayed in the “Metrics related to conditions” section of the gut (stool) sample report for both adult (>18 years) and child (>3 years) reports. The name has been updated to “Serotonin and melatonin in the gut” to reflect this change.

v4.5.3 - Urolithin action plan order adjustment

Date: 2025-09-10

Moves action plan items related to Urolithin-producing species lower in the action plan priority list

v4.5.2 - Action plan order and fix release

Date: 2025-08-22

This minor release includes action cards that are now triggered when specific PRO metrics are flagged in the report. It also includes a small fix to ensure the Urolithin-producing species recommendations appear in the correct order within the action plan.

Additionally, a minor change was made to how user sex is handled on the backend.

v4.5.1 - Backend variable name change

Date: 2025-08-25

This minor release makes a small change to a variable name in the backend. Sample results will not change.

v4.5.0 - New taxa descriptions and metric associations release

Date: 2025-08-15

This minor release includes new taxa descriptions at the phylum and family levels, and two new metric associations that are shown in the “Metrics related to conditions” section of the gut (stool) sample report:

• Serotonin production in the gut, now available in both adult (>18yo) and child (>3yo) reports.
• GLP-1 production, now available in adult reports.

v4.4.3 - Vaginal Microbiome Summary Score patch

Date: 2025-08-13

This release corrects an oversight in the calculation of Microbiome Summary Score in some vaginal kits.

v4.4.2 - Urolithin-producing species patch

Date: 2025-07-30

This release fixes a few minor bugs:

• correctly handles missing values, and
• handles customers with age over 100 years.

v4.4.1 - Urolithin-producing species patch

Date: 2025-07-16

This release fixes a minor bug in the Urolithin-producing species metric.

v4.4.0 - Urolithin-producing species metric and cardiovascular conditions release

Date: 2025-07-11

This release includes two new conditions and one new gut metric:

• The new conditions are associated with cardiovascular health: Hypertension and Atherosclerosis; and are available in adult reports.
• The new gut metric is Urolithin-producing species. Available for children (>3yo) and adult (>18yo) reports. Gut (stool) samples only

This release also includes a minor bug fix that may result in a slight value shift in Oral Microbes and Histamine-producing species metrics.

v4.3.0 - Menopause Condition

Date: 2025-06-13

This release introduces the new condition Menopause, available for both gut and vaginal samples in women aged 35 and older.

v4.2.1 - Note patch and science reference table addition

Date: 2025-06-02

This release updates writing the version in the kits table to before the note is generated.

v4.2.0 Oral microbes in the gut release and PRO metric integration

Date: 2025-05-30

This release is the first introduction of the new Oral microbes in the Gut metric. This metric is available for children and adult reports.

This release also includes changes to PRO stool chemistry metrics to move them to the top of the report into categories. This also moves the PRO metrics into main findings of the report.

v4.1.0 Gut Resilience Score Release

Date: 2025-05-16

Gut Resilience Score is released in BETA for all child and adult kits. This new metric measures how resilient the gut microbiome is to change based on its composition. More information on this metric can be found in the Gut Resilience Score blog.

v4.0.3 - Patch

Date: 2025-05-13

Minor patch to resolve bugs.

• Minor sandbox email bugfix.
• Ingests updates to production.

v4.0.2 Seeding taxonomy data and PRO metric ranges patch

Date: 2025-05-05

Two bugfixes and some science reference table updates.

• Seeding was broken because it would not pull in v2.0.0 taxonomic data. This fixes this bug.
• PRO metric ranges were inadvertently updated in the v4.0.0 release. This resets them to the original values.

v4.0.1 Action Card Patch

Date: 2025-05-04

A small patch release that fixes a bug with vaginal action cards. 
Also updates some science reference tables.

v4.0 -New Taxonomic Data, Range Updates, Vaginal Report Update

Date: 2025-04-17

Taxonomy Classification Updates:
Science release v4.0.0 contains improvements to our taxonomic classification of metagenomic reads. These improvements involved curating our taxonomic database to remove two main types of sequences:

1. Publicly-sourced genomes that have since been removed from public databases due to contamination or misclassification
2. Regions of genomes with ambiguous taxonomic classification.

The overall effect of these changes greatly increases the accuracy of our taxonomic classification. In particular, low abundance false positives and false positives from Enterobacteriaceae genomes have been reduced. In addition, contaminated or misclassified genomes from Akkermansia species, B. infantis and C. difficile have been removed resulting in fewer low-abundance false positives in these groups.

Overall summary of major changes:

1. Reduced C. difficile
2. Reduced Akkermansia
3. Reduced Enterobacteriaceae species: Salmonella, Escherichia dysenteriae
4. Reduced Shannon diversity and Species richness
5. Reductions in low abundance Bifidobacterium infantis

New taxonomic data has the version “Taxonomy v2.0.0”.

Vaginal Report Updates
The vaginal microbiome report has been updated with several important changes:

• Diversity metric removed: this metric is no longer included in the report.
• Metric name updates:
  • Potential Bacterial Vaginosis is now Bacterial Vaginosis–Associated Bacteria
  • Potential Yeast Infection is now Candida Yeasts
• Candida update: Candida krusei has been replaced by Candida dubliniensis.
• Bug fix: 28L (Megasphaera) now correctly appears under Bacterial Vaginosis–Associated Bacteria.
• Updated reference ranges for all vaginal taxa.
• New action cards: personalized suggestions based on your results and survey answers.
• New condition section: shows relevant metrics for:
  • Bacterial vaginosis
  • Aerobic vaginitis
  • Yeast infection
  • Urinary tract infection
• Lactobacillus breakdown: now includes a list of common Lactobacillus species found in your sample.
• Aerobic bacteria details: shows which bacteria contribute to total aerobic bacteria.

v3.5.0 - Conditions rework release

Date: 2025-04-03

This release implements the science reference table changes for the ‘conditions rework.

v3.4.3 - Upgrade email patch and table updates

Date: 2025-03-26

This patch fixes a small bug getting the correct email address for sending out kit version upgrades.

It also Ingests some updates to science reference tables made via ops dash.

v3.4.2 -Bug Patch

Date: 2025-03-12

This patch fixes a small bug causing missing PRO data to display as ‘0’.

v3.4.1 -Bug Patch

Date: 2025-02-25
This patch fixes a small bug that was causing a mathematical divide by 0 error.

v3.4.0 - Add additional Enterobacteriaceae genera to Opportunistic Pathogens release
 

Date: 2025-02-21

This minor release expands the Opportunistic Pathogen sub-metrics by adding 4 new genera from Enterobacteriaceae for all age groups and reports:

• Citrobacter
• Enterobacter
• Morganella
• Raoultella

It also changes the lower detection limit of Total aerobic bacteria in vaginal samples, and
fixes a bug where strains were not displayed for HMO-digesting species

v3.3.0 - qPCR results in app and PDF release

Date: 2025-02-07
This minor release adds qPCR results from the add-on qPCR Detection test for Candida and H. pylori to the app and the report pdf. Kits that had qPCR results previously emailed can now be found in app.

v3.2.0 - New metric release and patch

Date: 2025-01-24
This minor release introduces two new metrics and a bug fix:

• New metrics: Unconjugated bile acids and Secondary bile acids. These can be found under Microbial Enzymes & Metabolites > Modified Bile Acid Production Capacity.
• Bug fix: This patch fixes a bug where some action cards triggered for Hexa-LPS were appearing for the wrong age group. Cards are now properly displayed.

v3.1.1 - Ammonia patch

Date: 2024-12-03

This patch fixes a bug where the defined ranges for Ammonia were incorrect. The ranges have now been updated for all age groups to ensure accuracy.

v3.1.0 - New Metric Release

Date: 2024-11-14

This minor release introduces two new metrics:

• Methane-producing capacity, located alongside Methanobrevibacter smithii under Disruptive Microbes > Methane Production.
• Species Richness: Added alongside the Shannon Diversity index under Balance and Robustness > Microbiome Diversity > Species Richness. This metric provides an expanded view of the diversity within the microbiome ecosystem.

v3.0.0 - Major Version Update

Date: 2024-11-04

This is a major version update. 

All metric evaluations in the baby, toddler, child, and adult reports have been updated. Metric evaluations were calculated based on normalized distributions of thousands of microbiomes across all age ranges. Evaluations in reports under v3 are not comparable with v2 report evaluation. Microbiome summary scores (MSS) have also been updated to reflect metric evaluation changes.

• Relative abundance: Lower detection limit reduced from 0.05% to 0.005%.
• Opportunistic Pathogens: Due to the updated abundance threshold, evaluations for opportunistic pathogens and other taxa may differ from previous reports.

Science versioning is live. Each report is associated with a science version on release. Major version changes are not automatic, but can be opted for when activating a new kit. 

v2.1.2 - Duplicate action card in toddlers patch

Date: 2024-10-24

This patch fixes a bug where duplicate Bifidobacterium probiotic cards were appearing in toddler reports. Cards are now properly filtered for toddlers older than 2 years of age.

v2.1.1 - Functional Metrics Bug Fix

Date: 2024-10-04

This minor release includes the release of new functional metrics including IPA, BCAA, Ammonia, and GABA production and degradation for toddler, child, and adult reports. This release also fixes a bug that blocked strain tracking from being visible on pregnancy kits.

v2.1.0 - Functional Metrics (IPA, BCAA, TMA, Ammonia, GABA) release

Date: 2024-09-30

This minor release includes the release of new functional metrics including IPA, BCAA, Ammonia, and GABA production and degradation for toddler, child, and adult reports. This release also fixes a bug that blocked strain tracking from being visible on pregnancy kits.

v2.0.2 - Bug Fix Patch

Date: 2024-09-25

This patch fixes a bug where constipation action cards were not showing up for baby or toddler kits for users who filled out their new profile surveys.

v2.0.1 - First Science Version

Date: 2024-09-25

This includes all major, minor, and patch updates to our science metrics up to Sept 25, 2024. This version is our first recorded version when we started versioning science metrics.