Shiny v1.3.2

2019-04-26 Joe Cheng
We’re excited to announce the release of Shiny v1.3.2. This release has two main features: a new reactivity debugging tool we call reactlog, and much faster serving of static file assets. Introducing reactlog: Visually debug your reactivity issues Debugging faulty reactive logic can be challenging, as we’ve written and talked about in the past. In particular, some of the most difficult Shiny app bugs to track down are when reactive expressions and observers re-execute either too often (i. Read more →

Shiny 1.2.0: Plot caching

2018-11-13 Joe Cheng
We’re pleased to announce the CRAN release of Shiny v1.2.0! This release features Plot Caching, an important new tool for improving performance and scalability in Shiny apps. If you’re not familiar with the term “caching”, it just means that when we perform a time-consuming operation, we save (cache) the results so that the next time that operation is requested, we can skip the actual operation and instantly fetch the previously cached results. Read more →

Shiny Server (Pro) 1.5.8

2018-09-04 Joe Cheng
Shiny Server and Shiny Server Pro are now available. This release includes support for listening on IPv6 addresses. It also fixes issues with servers that have home directories mounted over NFS with root_squash, and with networks that use double-bind LDAP with restrictive permissions on user accounts. Finally, this release changes the default SSL/TLS configuration in Shiny Server Pro to remove support for the obsolete and insecure TLSv1 protocol. Read more →

Shiny 1.1.0: Scaling Shiny with async

2018-06-26 Joe Cheng
This is a significant release for Shiny, with a major new feature that was nearly a year in the making: support for asynchronous operations! Without this capability, when Shiny performs long-running calculations or tasks on behalf of one user, it stalls progress for all other Shiny users that are connected to the same process. Therefore, Shiny apps that feature long-running calculations or tasks have generally been deployed using many R processes, each serving a small number of users; this works, but is not the most efficient approach. Read more →

Shiny Server (Pro) 1.5.7

2018-04-11 Joe Cheng
Shiny Server and Shiny Server Pro are now available. Highlights for this release are a major-version Node upgrade, support for HTTP gzip/deflate compression and (optionally) secure cookies, and numerous bug fixes. We’ve also dropped support for some Linux distro versions that have reached their end of life. Shiny Server Upgrade to Node v8.10.0. Dropped support for Ubuntu 12.04 and SLES 11. Support gzip/deflate compression for HTTP responses. Read more →

Shiny Server (Pro) 1.5.6

2017-12-11 Alan Dipert
Shiny Server and Shiny Server Pro are now available. This release of Shiny Server Pro includes floating license support and Shiny Server contains a small enhancement to the way errors are displayed. We recommend upgrading at your earliest convenience. Shiny Server Use HTTPS for Google Fonts on error page, which resolves insecure content errors on some browser when run behind SSL. (PR #322) Shiny Server Pro 1. Read more →

pool package on CRAN

2017-11-17 Bárbara Borges
The pool package makes it easier for Shiny developers to connect to databases. Up until now, there wasn’t a clearly good way to do this. As a Shiny app author, if you connect to a database globally (outside of the server function), your connection won’t be robust because all sessions would share that connection (which could leave most users hanging when one of them is using it, or even all of them if the connection breaks). Read more →

Announcing RStudio Professional Drivers

2017-10-16 Nathan Stephens
Today we are excited to announce the availability of RStudio Professional Drivers. There are, of course, many ways to connect to Databases using R. RStudio Professional Drivers are specifically intended for use with our professional products, including RStudio Server Pro, Shiny Server Pro, and RStudio Connect. These data connectors combined with enhancements to dplyr, the odbc package, and the RStudio IDE provide a comprehensive suite of tools for accessing and analyzing data with your enterprise systems. Read more →

Shiny Server (Pro) 1.5.4

2017-09-12 Alan Dipert
Shiny Server and Shiny Server Pro are now available. Both the new Shiny Server and Shiny Server Pro releases include bug fixes and enhancements, and we recommend upgrading at your earliest convenience. Shiny Server Clickjacking protection can now be enabled using the frame_options directive. This directive was already available in Shiny Server Pro, but is now available in Shiny Server as well. A bug that caused "Error: Can't set headers after they are sent. Read more →

Shiny Dev Center gets a shiny new update

2017-08-29 Mine Çetinkaya-Rundel
I am excited to announce the redesign and reorganization of, also known as the Shiny Dev Center. The Shiny Dev Center is the place to go to learn about all things Shiny and to keep up to date with it as it evolves. The goal of this refresh is to provide a clear learning path for those who are just starting off with developing Shiny apps as well as to make advanced Shiny topics easily accessible to those building large and complex apps. Read more →