It is certainly possible to do something like this in Chart.js v2.x

I think the nicest way to do it is by using a plugin. In fact, Cmyker awnser to the question you linked to even updated his posts to show how this would work in Charts.js v2.x

See his fiddle: https://jsfiddle.net/cmyker/ooxdL2vj/

and the corresponding plugin definition:

Chart.pluginService.register({

  beforeDraw: function(chart) {

    var width = chart.chart.width,

        height = chart.chart.height,

        ctx = chart.chart.ctx;



    ctx.restore();

    var fontSize = (height / 114).toFixed(2);

    ctx.font = fontSize + em sans-serif;

    ctx.textBaseline = middle;



    var text = 75%,

        textX = Math.round((width - ctx.measureText(text).width) / 2),

        textY = height / 2;



    ctx.fillText(text, textX, textY);

    ctx.save();

  }

});