General

Dirk Eddelbuettel: nanotime 0.3.14 on CRAN: Upstream Maintenance

By zombie Loading...

Another minor update 0.3.14 for our nanotime
package is now on CRAN, and has
compiled for r2u (and
will have to wait to be uploaded to Debian until dependency bit64 has been
updated there). nanotime
relies on the RcppCCTZ
package (as well as the RcppDate
package for additional C++ operations) and offers efficient high(er)
resolution time parsing and formatting up to nanosecond resolution,
using the bit64
package for the actual integer64 arithmetic. Initially
implemented using the S3 system, it has benefitted greatly from a
rigorous refactoring by Leonardo who not only rejigged
nanotime internals in S4 but also added new S4 types for
periods, intervals and durations.

This release has been driven almost entirely by Michael, who took over as
bit64 maintainer
and has been making changes there that have an effect on us
‘downstream’. He reached out with a number of PRs which (following
occassional refinement and smoothing) have all been integrated. There
are no user-facing changes, or behavioural changes or enhancements, in
this release.

The NEWS snippet below has the fuller details.

Changes in version 0.3.14
(2026-04-22)

  • Tests were refactored to use NA_integer64_ (Michael
    Chirico in #149 and
    Dirk in #156)

  • nanoduration was updated for changes in nanotime 4.8.0 (Michael Chirico in #152 fixing
    #151)

  • Use of as.integer64(keep.names=TRUE) has been
    refactored (Michael Chirico in #154 fixing
    #153)

  • In tests, nanotime is attached after
    bit64; this still needs a better fix (Michael
    Chirico in #155)

  • The package now has a hard dependency on the just released bit64 version 4.8.0 (or later)

Thanks to my CRANberries, there
is a diffstat report for this
release. More details and examples are at the nanotime
page; code, issue tickets etc at the GitHub repository –
and all documentation is provided at the nanotime documentation
site.

This post by Dirk
Eddelbuettel originated on his Thinking inside the box
blog. If you like this or other open-source work I do, you can now sponsor me at
GitHub. You can also sponsor my Tour
de Shore 2026 ride in support of the Maywood Fine Arts Center.

AI Assistant
Context loaded: Dirk Eddelbuettel: nanotime 0.3.14 on CRAN: Upstream Mainten