EPNExess 1.2.0

If you ever changed your base currency on 1.1.x, read the first item below.

1.2.0

Financial data correctness

• Fixed base-currency changes so historical payment amounts are rebased with the
  currency table. Before this version, changing the base currency made historical
  totals incorrect. History recorded before an earlier base-currency change may
  still be flagged as unreliable because the original values cannot be recovered
  from the old database
• Payments now record the exact amount that moved in the account's currency, so
  marking a payment unpaid restores the original balance change even if exchange
  rates have changed since. Existing payment rows are migrated using the best
  rate available at upgrade time
• Amounts, balances, tax rates and exchange rates reject NaN and infinity instead
  of allowing invalid values into totals
• Unknown currencies now raise an error instead of silently converting at 1:1

Data and file handling

• Multi-step database changes, including payments, reversals, transfers, wipes
  and schema upgrades, now run in transactions and roll back together on failure
• The default data directory is restricted to mode 0700 and the SQLite file to
  0600 on filesystems that support POSIX permissions
• CSV export neutralises cells that spreadsheet applications could interpret as
  formulas
• An empty dashboard now shows the full path of the database file in use. The
  line disappears once subscription data exists

Release process

• PyPI publishing is gated on the core, interface and package-installation tests,
  version agreement, distribution metadata validation and an installed-wheel
  smoke test
• GitHub Actions and build tools used by release workflows are pinned to specific
  revisions or versions
• Core behavior is tested on Python 3.10 through 3.13 on Linux, with platform
  coverage on Windows and macOS; the interface is tested on Python 3.10 through
  3.13 under a Linux virtual display

EPNExess 1.1.3

⚠️ Superseded by 1.2.0, which fixes a bug where changing the base currency corrupted historical totals. Use 1.2.0.

The first public release of EPNExess.

Track subscriptions, bills and income across personal and company
accounts — offline, multi-currency, with tax taken off what comes in.

Download

• Windows — EPNExess-windows.zip
• Mac (Apple silicon) — EPNExess-macos-arm64.zip
• Mac (Intel) — EPNExess-macos-x86_64.zip (not yet released)

No Python, no database, no account needed. Both systems warn on first
launch because the app is unsigned — on Windows click More info →
Run anyway; on Mac right-click the app → Open.

Or install with Python: pip install epnexess (pipx install epnexess
on recent Linux and Homebrew).

Full instructions: INSTALL.md

What it does

• Subscriptions and bills on weekly, monthly, quarterly and yearly cycles
• Income entries with up to two compounding tax rates
• Personal and company accounts, with subaccounts for the banks and cards
  money actually sits in
• A 45-day payment runway: money out above the line, income below
• Account cover — whether each account will have enough, and a one-click
  top-up from another account when it won't
• Overdue tracking, multi-currency, CSV export

Everything stays in one file on your own machine. No network calls, no
telemetry, no account.

Full change list: CHANGELOG.md