# fix1543, fix1571 & fix1623 Amendments Open for Voting

Previously [introduced in `rippled` version 1.0.0](/blog/2018/rippled-1.0.0), the [fix1543](/resources/known-amendments#fix1543), [fix1571](/resources/known-amendments#fix1571) and [fix1623](/resources/known-amendments#fix1623) amendments are now open for voting.

* The `fix1543` amendment enforces reserved flag ranges on escrow, payment channel, and ticket transactions.
* The `fix1571` amendment changes the EscrowCreate transaction to require the Condition or FinishAfter field (or both) and also fixes a flaw that incorrectly prevents time-based Escrows from being finished in some circumstances.
* The `fix1623` amendment adds delivered amount metadata to CheckCash transactions that cash a check for a flexible amount.


## Action Required

**If you operate a `rippled` server**, then you should upgrade to version 1.0.0 by Tuesday, 2018-06-19 00:00:00 UTC, for service continuity.

## Impact of Not Upgrading

If you operate a `rippled` server but don’t upgrade to version 1.0.0 by Tuesday, 2018-06-19, when the [fix1543](/resources/known-amendments#fix1543), [fix1571](/resources/known-amendments#fix1571) and [fix1623](/resources/known-amendments#fix1623) amendments are expected to become enabled on the network, then your server will become [amendment blocked](/docs/concepts/networks-and-servers/amendments#amendment-blocked-servers), meaning that your server:

* Cannot determine the validity of a ledger
* Cannot submit or process transactions
* Does not participate in the consensus process
* Does not vote on future amendments
* Could rely on potentially invalid data


If the [fix1543](/resources/known-amendments#fix1543), [fix1571](/resources/known-amendments#fix1571) and [fix1623](/resources/known-amendments#fix1623) amendments do not become enabled, then your server will not become amendment blocked and should continue to operate.

## Learn, ask questions, and discuss

Related documentation is available in the [XRP Ledger Dev Portal](/docs/), including detailed example API calls and web tools for API testing.

Other resources:

* The Ripple Forum (*Disabled.* Formerly `forum.ripple.com`)
* The Ripple Dev Blog *(Replaced with [xrpl.org/blog](https://xrpl.org/blog/))*
* Ripple Technical Services: [support@ripple.com](mailto:support@ripple.com)
* XRP Chat *(Shut down. Formerly `www.xrpchat.com`)*


To continue receiving updates about the `rippled` server, please subscribe to the Ripple Server Google Group: [https://groups.google.com/forum/#!forum/ripple-server](https://groups.google.com/forum/#!forum/ripple-server)