Symbol Launch Reporting & Single Source of Information

High Level Update

  • Mainnet public launch date is unchanged
  • Discussion continues between the core developers and penetration testing company on the best solution for finality. As parts are agreed, coding continues to be done toward v1 release
  • v9.5.1. is due to be delivered by the core developers to @kaiyzen tomorrow (8th May) and is on time. This is not the RC release for 9.5.1, but it considered FC release. The team then update all other code elements, and RC release and Testnet update will occur over the next 10 days
  • Work commenced on the governance solution for the post snapshot optin Token Management Process (line 185)
  • Discussions with potential exchange audit companies are underway. To list a token the larger exchanges require a fully conducted review as part of their approval process
  • Nominal changes to the plan, all other lines on track

Specific Plan Changes

  • Line 22 - Increase in time to approval
    There are a number of reviews and cycles that are being run through. As steps of consensus and finality voting are settled on

  • Line 23 - Lag increased as coding continues
    Additional lag to reflect the above line change


High Level Update

  • Main net public launch date is unchanged
  • Discussion continues between the core developers and core protocol review company on the best solution for finality. This has now become an amber risk to impact of the launch time line - if there is no resolution within the next 10 days its likely to have an impact on launch time lines
  • v9.5.1 is due for release next week and is on schedule
  • Line 197 - Contract code review company: This is likely to be a few days late as we are in the negotiation and scoping stage with the company.

Specific Plan Changes

Line 197 - Added 10 days to contracting code review company
This has no impact on the launch date


High Level Update

  • Main net public launch date is unchanged BUT is at risk owing to finality solution taking longer to conclude than planned.
  • Discussion continues between the core developers and core protocol review company on the best solution for finality. This has now become an amber risk to impact of the launch time line - if there is no resolution within the next 5 days its likely to have an impact on launch time lines
  • v0.9.5.1 is due for release today and details will be communicated out by @kaiyzen
  • There will be a further release v0.9.6 which will be made prior to v1. This will be added to the plan over the next week, and the plan updated accordingly.
12 Likes release announcement


Hi everyone

A quick update on some confusion around the website roadmap.

The roadmap was incorrectly updated on the website yesterday and we are investigating why. It seems a good intentioned updated was made to a typo (snaphot, to snapshot). It will be returned to the original version.

We can share that there was an introduction of an extra release (0.9.6) detailed above in the update for the 22nd May 2020 and that this is still to be completely scoped. It is unlikely to impact launch date.

While scoping of 0.9.6 is ongoing, in parallel there is an assessment of the finality conversations carrying on as to launch date and its impact. These have taken a lot longer than originally scheduled to come to a conclusion and the risk has been flagged on the past few updates.

This is at a critical point and any impact on launch date is dependent upon if the agreement on finality is made this week.


A seperate update post has just been made on Symbol Launch and Opt in Update.


Minor update notification:

  • Updated roadmap to include new optin target dates, and version 0.9.6 release

High Level Update

  • The next release is 4 working days late, now scheduled for 30th June
  • This does not impact the overall launch date
  • 9.6.1 was code ready last week, but an update to core was made to allow for optin during this release. This means a 9.6.2 release
  • 9.6.2 core is complete
  • SDK and REST will be completed by the end of the week
  • E2E Testing will begin at the end of the week
  • More information about test net will be given nearer the release

The Project plan will be updated tomorrow to reflect these changes


An update has been provided on the NEM Symbol Release there have been some deployment/release issues found that are being worked through, expect another update at latest Monday 6th July, probably sooner.


Just adding a couple more updates to this list:

9 Likes has now been released successfully. Here is the announcement post.

Just highlighting the desktop wallet release for

And documentation:


Finality and Optin Updates are elsewhere on the forum, attached here for ease:

I will be updating the roadmap with a placeholder for now until the solution is approved. There will then be redrafted comms on the forum posts and a rebaselined plan


Update on finality design and coding


Release Update: is now available.

Full details are available: NEM Symbol Release Announcement


Rebaselining of launch date and Project Plan

NEM Group published a live document launch plan almost four months ago to the day and steady progress has occurred in development, testing and release management as we get closer to the launch of V1 MainNet of Symbol.

Today is our first full re-baseline of the plan and we have attempted to communicate regularly about any risks or issues we have faced. The finality solution, which is explained here and is at the bleeding edge of this technology, has taken us a lot longer to get to a solution that satisfies the NEM philosophy and gives us a scalable, secure solution that can be launched as soon as possible. Last week we gave an update of progression and we continue to be cautiously optimistic that the solution found will satisfy all NEM requirements.

We have also taken this opportunity to appoint a Programme Manager, improve our release management, reconcile our github repositories, revisit the UI/UX of outward facing elements such as wallets, and perform additional security testing and review of the code to ensure that we have the best possible product.

The latest live plan output shows the following key milestones that I know you will be interested in:

  • 24th Aug - Confirm optin date (this will coincide with a launch marketing plan)
  • 15th Sep - Code freeze, V1 launch
  • 7th Sep - Optin Opens
  • 3rd - 16th Dec - Snapshot range
  • 17th Dec - MainNet Launch

The Symbol Launch Single Source of Information post has been updated, the Symbol Launch Plan post will be updated within a few days as will the roadmap on the forum and website.

I would like to also highlight some of the risk still in this plan below -

  1. Finality coding and testing: the plan depends on the finality solution remaining achievable as it is being coded. We are mitigating this from a time perspective by working closely with the core developers and looking at bringing on a specific security specialist C++ dev to help if that is practical and helps with the timeline.
  2. As always with testing and testnet, if we find something part way through and need to restart the testnet this would reset the clock on a 3 month soak period. To date this has been mitigated by multiple version releases with various test cycles but will remain a risk.
  3. The Opt In process and modules that have been developed are being put through testing and security reviews to complete by early Sept. Owing to the advice to have a 3 month opt in window pre-launch if that is delayed by more than 2 weeks it could impact launch.

We continue to press hard for a 2020 launch date and thanks all for your patience as we enter the final stages before Symbol launch.

High Level Summary of Changes

  • New launch date is 17th December 2020. This predominantly relates to the planning estimate for a finality solution to be approved being incorrect. We are monitoring progress closely
  • Optin will begin in mid September
  • The snapshot will occur during a window in the first 2 weeks of December
  • Multiple date changes to lines in exchanges
  • Added new versions 9.6.1 and 9.6.4
  • Added work completed by two external security firms on code and finality solution
  • Significant increase in the timings for finality solution to be approved and coded
  • Added in additional security and pen testing wallets for optin
  • Added in additional security and pen testing to wallets and external facing elements
  • Added section for KeepKey addition of XYM

Opt-in Date Announcment

The Opt In date has now been announced: Opt-in Date Announcement for 15 September 2020

Further information will be provided when it opens in guides and some is available in the post above


Optin and Testnet Updates


Testnet update


NEM Symbol Testnet Launch and v0.10.0 Release

Have just been announced on the forum at the link below


The desktop wallet has been updated