Changelog

Selected historical updates to PM Toolkit calculators, content, and features. Counts describe those releases.

March 2026

SEO Round 3 — Content Expansion

  • AddedRole-specific landing pages: Growth PM, B2B PM, and Startup PM
  • AddedChangelog page with selected development updates
  • Added5 comparison pages: LTV vs CLV, MRR vs ARR, NPS vs CSAT, Churn vs Retention, TAM vs SAM vs SOM
  • Added5 how-to guides: how to calculate LTV, CAC, churn rate, NPS, and MRR
  • Added20 PM glossary term pages covering core SaaS and product metrics
  • Added3 benchmark hub pages: SaaS metrics 2026, NPS benchmarks by industry, churn rate benchmarks
  • AddedBLUF answer blocks on all major calculator pages for AEO
  • AddedIndustry-specific calculator variants for SaaS, marketplace, and eCommerce
  • ImprovedOpen Graph images updated for all calculator pages
  • ImprovedSchema.org structured data — FAQPage, HowTo, Dataset schemas
  • PerformanceLCP improvement: lazy-loaded animation components on homepage
  • PerformanceINP optimisation for RICE and weighted scoring table calculators

February 2026

SEO Round 2 — Technical & On-Page

  • AddedPM Metrics Cheat Sheet page with all 22 calculator formulas in one place
  • AddedRICE vs ICE comparison page
  • AddedCanonical URLs on all pages
  • AddedIndexNow integration for faster search engine indexing
  • ImprovedSchema.org structured data on all calculator and learn pages
  • ImprovedArticle publication and modification dates on all learning hub articles
  • ImprovedGlossary index page with alphabetical navigation
  • ImprovedOpen Graph meta tags across all content pages
  • ImprovedInternal linking between related calculators and articles
  • FixedMissing alt text on calculator illustration images
  • FixedDuplicate H1 tags on calculator pages

January 2026

SEO Round 1 — Foundation

  • AddedComprehensive URL redirects for all broken internal links
  • AddedDynamic sitemap.xml covering all calculators, articles, and content pages
  • Addedrobots.txt with appropriate crawl directives
  • AddedStructured data (Schema.org) for all 22 calculator pages
  • AddedOpen Graph images for social sharing on all major pages
  • ImprovedMeta titles and descriptions across all pages
  • ImprovedHeading hierarchy (H1-H3) on all calculator and article pages
  • ImprovedMobile navigation responsiveness and touch targets
  • PerformanceBundle size reduction with dynamic imports and code splitting
  • PerformanceFont loading optimisation with font-display: swap

August 2025

22 Calculators Complete

  • AddedRetention Analytics calculator (22nd and final calculator in v1)
  • AddedQuick analysis and full cohort wizard modes for retention analysis
  • AddedNPS Calculator with 3-stage wizard and revenue impact analysis
  • AddedKano Model Calculator with auto-categorisation and matrix visualisation
  • AddedWeighted Scoring Calculator with dynamic criteria management
  • AddedNPS data stage with manual and CSV input options
  • AddedMRR/ARR Growth Engine with revenue waterfall chart and Quick Ratio gauge
  • AddedImpact/Effort Matrix with drag-and-drop positioning
  • ImprovedFull-page calculator layout replacing card-based design
  • ImprovedGradient backgrounds and visual hierarchy across all calculator pages
  • AddedPDF Export functionality for all calculators with formula transparency

July–August 2025

Core Calculator Suite

  • AddedRICE Prioritisation Calculator with smart scoring and quadrant visualisation
  • AddedICE Prioritisation Calculator with simplified 1-10 scale scoring
  • AddedMarket Sizing Suite (TAM/SAM/SOM) with 3-stage wizard
  • AddedS-curve growth projections and funnel visualisation for market sizing
  • AddedCAC Calculator with two-mode input and LTV:CAC ratio visualisation
  • AddedAutomatic LTV import into CAC Calculator
  • AddedPM Guidance System with contextual tooltips on every calculator
  • AddedThree-tab guidance interface: Overview, Decisions, Examples
  • AddedIndustry benchmarks by segment and company maturity

July 2025

Infrastructure & Navigation

  • AddedBase Calculator Infrastructure with TypeScript generics
  • AddedData flow system for import/export between calculators
  • AddedSession-based state persistence across all calculators
  • AddedDesktop sidebar navigation with category grouping and favourites
  • AddedCommand palette (Cmd+K) with natural language search
  • AddedMobile navigation with bottom nav bar and slide-up sheet
  • AddedCalculator factories for rapid development (ratio, growth, collection types)
  • AddedError boundaries for isolated calculator failures
  • PerformanceDynamic imports to reduce the initial bundle

June–July 2025

Launch & Homepage

  • AddedHomepage with interactive galaxy visualisation and floating calculator nodes
  • AddedDemo value generation system with live metric updates
  • AddedConnection visualisation between related calculators
  • AddedLTV Calculator with multiple calculation methods
  • AddedPMF Score Calculator with Sean Ellis framework
  • AddedROI and Payback Period Calculator
  • AddedConversion Rate Calculator with funnel analysis
  • AddedDAU/MAU Ratio Calculator with engagement benchmarks
  • AddedVelocity Calculator for sprint planning
  • AddedCycle Time and Lead Time Calculator
  • AddedSample Size Calculator with power analysis
  • AddedA/B Test Calculator with pre-test planning and post-analysis
  • AddedChurn Rate Calculator with revenue impact modelling

January 2026 — Learning Hub

Content & Learning

  • AddedLearning Hub with 33 comprehensive PM guides via Contentlayer2
  • AddedInteractive calculator embeds within learning articles
  • AddedLearning tracks: Growth, Analytics, Prioritisation, Execution
  • AddedFull-text search across all learning hub content
  • AddedPM Prompt Library with 33 ChatGPT/Claude templates
  • AddedPrompt categories: PRD writing, RICE scoring, user stories, competitive analysis
  • AddedData View dashboard aggregating metrics from all calculators
  • AddedStrategic insights engine with metric relationship graph
  • AddedCalculation history timeline in Data View
  • ImprovedRelated articles and calculator suggestions on all content pages

Change types

AddedImprovedFixedPerformance
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